3. Mr. Sanchez’s class sold fruit pies for $1. 65 each and Mr. Kelly’s class sold bottles of fruit juice for $1. 36 each. Together, the classes sold 79 items and earned $118. 17 for their school. (a) Write and solve a system of equations that model the problem. Show all your work. (b) Which class earned more money? (c) How much more money did that class earn?.

To compare the 5 AC models based on Fahein's preferences, he assigns three times more importance to energy efficiency and two points more importance to noise levels compared to services and installation.

Design features hold no importance to him. Based on these preferences, Fahein can use the following formula to compare the models:Score = 3 * Energy Efficiency + (Services and Installation) + 2 * Noise LevelsIn this formula, Fahein multiplies the energy efficiency score by 3 to give it three times more weight. He adds the services and installation score as is since it has equal importance. He also adds 2 to the noise levels score to give it two points more weight. Design features are not included in the formula since they don't matter to Fahein.

By plugging in the respective scores for each model into this formula, Fahein can compare and evaluate the models based on his preferences. The model with the highest score would be the most suitable choice for Fahein.

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The limit of the expression (x^2+4x-43.61)/(x^2-0.2x-23.03) as x approaches 4.9 is equal to a specific value. The limit of the given expression as x approaches 4.9 is approximately 1.51.

To find the limit as x approaches 4.9, we substitute 4.9 into the expression and evaluate it. Plugging in 4.9 for x, we get ((4.9)^2 + 4(4.9) - 43.61)/((4.9)^2 - 0.2(4.9) - 23.03). Simplifying this expression gives us (24.01 + 19.6 - 43.61)/(24.01 - 0.98 - 23.03), which further simplifies to 0/0.

When we encounter an indeterminate form like 0/0, we can apply mathematical techniques to evaluate the limit. One approach is to use L'Hôpital's Rule, which states that if the limit of the ratio of two functions f(x)/g(x) is of the form 0/0 or ∞/∞ as x approaches a certain value, then the limit of the ratio is equal to the limit of the derivative of f(x) divided by the derivative of g(x) as x approaches the same value.

In this case, we can differentiate the numerator and denominator separately and apply L'Hôpital's Rule. After differentiating, we obtain the new expression (2x + 4)/(2x - 0.2). Evaluating this expression at x = 4.9 gives us (2(4.9) + 4)/(2(4.9) - 0.2), which simplifies to 14.8/9.8. Therefore, the limit of the given expression as x approaches 4.9 is approximately 1.51.

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Based on the given description, the best description for this histogram would be that it has 2 clusters.

A histogram with 2 clusters indicates that the data is divided into two distinct groups or categories. In this case, the groups likely represent different ranges of science grades. The first cluster may correspond to grades in the range of 50-59, while the second cluster may represent grades in the range of 70-79.

The term "symmetrical" does not apply to this description, as it refers to a distribution where the data is evenly distributed around a central value. However, based on the given information, the focus is on the presence of two distinct clusters in the histogram.

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The area of the NCAA basketball court is 4700 square feet and the area of the similar court is 5142.78 square feet.

Given the length and width of an NCAA basketball court are 94 feet and 50 feet respectively, and it has an area of 4700 square feet.

The school plans to make a similar court with the width of 45 feet. We need to find the area of both courts. Let's begin by finding the area of the NCAA basketball court.

Area of the NCAA basketball court = Length x Width= 94 feet x 50 feet= 4700 square feet. Given the width of the similar court is 45 feet. Width of the NCAA basketball court = 50 feet. Width of the similar court = 45 feet. We need to find the length of the similar court.

The length of the similar court can be obtained using the proportion method.

Area of the NCAA basketball court / Area of the similar court = 1. Let the length of the similar court be "x". Area of the NCAA basketball court / Area of the similar court = (Length of the NCAA basketball court / Length of the similar court)²Area of the similar court = Area of the NCAA basketball court × (Length of the similar court / Length of the NCAA basketball court)².

Area of the similar court = 4700 × (x / 94)²

Area of the similar court = (4700 x²) / 94²

Area of the similar court = (4700 x²) / 8836

We know the width of the similar court is 45 feet. Area of the similar court

= Length x Width(4700 x²) / 8836

= x × 45x = (4700 x²) / (8836 x 45)x

= 470000 / (8836 x 45)x

= 114.284 ft.

Therefore, the length of the similar court is 114.284 ft. Area of the similar court =

Length × Width. Area of the similar court = 114.284 ft × 45 ft.

Area of the similar court = 5142.78 square feet.

The area of the NCAA basketball court is 4700 square feet and the area of the similar court is 5142.78 square feet.

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The substance that has changed the most over time from its original plant material is the drug, opium. Opium is a narcotic substance obtained from the poppy plant and has been used as a painkiller for thousands of years. Over time, opium has undergone several transformations to become a more potent substance.

The substance that has changed the most over time from its original plant material is the drug, opium. Opium is a narcotic substance obtained from the poppy plant and has been used as a painkiller for thousands of years. Over time, opium has undergone several transformations to become a more potent substance. The most significant change occurred when it was processed to produce morphine, a much stronger and more addictive substance. Morphine was first isolated from opium in 1804 by the German pharmacist Friedrich Sertürner. Since then, scientists have discovered how to further modify morphine to create an even more potent substance known as heroin.

Heroin is a highly addictive drug that has become a major public health problem. It is derived from morphine, which is derived from opium. The process of converting opium into heroin involves several chemical steps, which are illegal and extremely dangerous. This process often involves the use of toxic chemicals, such as hydrochloric acid and acetic anhydride, which can cause severe health problems and even death. Opium, morphine, and heroin are all examples of substances that have been changed significantly from their original plant material. However, the changes that have occurred over time have had serious consequences for public health and have led to a major epidemic of addiction and overdose deaths.

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In this case, there are 5 drivers and a probability of 1/4 (14/100) for overtime. Therefore, the probability of being allocated overtime next week is 1/20 or 5%.

Given that there are 5 drivers at Highfield Transport and the probability of overtime being available in any given week is 14/100, we can calculate the probability of being allocated overtime next week.

The probability of being allocated overtime is determined by the ratio of favorable outcomes (being allocated overtime) to the total possible outcomes (the number of drivers).

Favorable outcomes: There is only one driver who will be allocated overtime.

Total possible outcomes: There are 5 drivers in total.

Therefore, the probability of being allocated overtime is:

P(Overtime) = Favorable outcomes / Total possible outcomes

P(Overtime) = 1/5

This probability can also be expressed as a fraction, which is 1/5, or as a percentage, which is (1/5) * 100 = 20%.

Thus, the probability of being allocated overtime next week at Highfield Transport is 1/20 or 5%. This means that there is a 5% chance of being chosen for overtime among the 5 drivers.

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Jason will pay $262.50 in interest if he pays off the entire loan at the end of the third year.

To calculate the interest Jason will pay if he pays off the loan at the end of the third year, we need to use the formula for compound interest:

Interest = Principal * Interest Rate * Time

In this case, the principal (initial amount borrowed) is $2,500 and the interest rate is 3.5% (or 0.035 as a decimal). The time is 3 years.

Interest = $2,500 * 0.035 * 3

Interest = $262.50

Therefore, Jason will pay $262.50 in interest if he pays off the entire loan at the end of the third year.

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Alexander Hamilton was a staunch supporter of the Federalist Party and, in particular, a strong supporter of a powerful central government. He opposed Thomas Jefferson's philosophy of a strict interpretation of the Constitution and advocated for the creation of a strong economy, and the promotion of manufacturing and industry.

Their visions differed. Hamilton had a vision for America that was far more centralized and industrialized than that of Jefferson. He wanted a strong national government that would be able to support a thriving economy by promoting industry, commerce, and manufacturing, while Jefferson favored a limited federal government that would be unable to interfere in the lives of individual citizens.In Hamilton's view, the United States needed to establish itself as a world power, and he believed that this could be accomplished through a strong military and a powerful economy.

He saw the United States as a great commercial and manufacturing nation, and he believed that it could only achieve this status by embracing industrialization and creating a national bank that would provide the capital necessary to finance economic growth. Jefferson, on the other hand, believed that the federal government should have only limited powers and that these powers should be strictly defined by the Constitution. He believed that the states should have more power than the federal government and that the country should be primarily agrarian.

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The definite integral ∫(0 to 2) f(x)√(16 - x^4) dx, using u-substitution (u = x^2), simplifies to ∫(0 to 4) f(√u)√(16 - u^2) (1/2) du. The specific value of the integral depends on the function f(x) provided.

To solve the integral ∫(0 to 2) f(x)√(16 - x^4) dx using u-substitution, we begin by letting u = x^2. This choice of substitution allows us to simplify the expression and integrate with respect to u instead of x.

First, we need to find the differential du in terms of dx. Differentiating u = x^2 with respect to x, we have du = 2x dx.

Next, we substitute u and du into the integral. The limits of integration will also change accordingly. When x = 0, u = (0)^2 = 0, and when x = 2, u = (2)^2 = 4. The new integral becomes ∫(0 to 4) f(x)√(16 - x^4) dx = ∫(0 to 4) f(√u)√(16 - u^2) (1/2) du.

Now, we can evaluate the integral with respect to u, and then substitute back u = [tex]x^{2}[/tex] to obtain the final result.

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1 1/2 can be split apart into 1 as the whole part and 3/2 as the fractional part.

To split apart the mixed number 1 1/2 into its whole part and fractional part, we need to understand the components of a mixed number.

A mixed number consists of a whole number part and a fractional part. In this case, 1 1/2 is a mixed number where 1 is the whole number part and 1/2 is the fractional part.

To separate the whole part and fractional part, we can rewrite the mixed number as an improper fraction.

The whole number part, 1, can be written as a fraction with a denominator of 1:

1 = 1/1

Now, let's convert the fractional part, 1/2, into an improper fraction. To do this, we multiply the whole number part, 1, by the denominator of the fraction and add the numerator:

1 x 2 + 1 = 2 + 1 = 3

The improper fraction is 3/2.

So, we have the whole part as 1 and the fractional part as 3/2.

It's worth noting that the whole part represents the whole number portion of the mixed number, while the fractional part represents the remaining portion of the number that is less than a whole unit.

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The actual width of the rectangular swimming pool is given as 28 feet. Jason's drawing is made to a scale of 1 inch : 4 feet.

To find out how many inches wide Jason's drawing is, we need to divide the actual width of the pool by the scaling factor (4 feet).

28 feet / 4 feet = 7

Therefore, Jason's drawing of the pool is 7 inches wide.

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The point that you will end up at if you start at (-5, -2) and move 7 units to the right is (2, -2). Starting at (-5,-2) and moving 7 units to the right means moving 7 units along the x-axis in the positive direction.

Therefore, the point that you will end up at is (2, -2). Clues have not been provided in the question. However, we can still discuss how to find the value of circle plus circle. Circle plus circle refers to the sum of the areas of two circles. The formula for the area of a circle is given as: $$A=πr^2$$ where A is the area of the circle and r is its radius. To find the sum of the areas of two circles, we simply add their respective areas.

Therefore, the value of circle plus circle is given by the formula: $$\text{Circle plus Circle} = πr_1^2 + πr_2^2$$ where r1 and r2 are the radii of the two circles respectively. If the values of the radii are provided, then we can substitute them in the above formula to find the value of circle plus circle.  To find the value of circle plus circle, we need to add the areas of two circles. The area of a circle is given by the formula A = πr² where A is the area of the circle and r is the radius. Therefore, the formula for the value of circle plus circle is given by Circle plus Circle = πr1² + πr2² where r1 and r2 are the radii of the two circles respectively. As we already know that a circle is a geometric figure having no end. It has many properties. One of its properties is that its area can be measured. When we talk about the area of a circle, we are referring to the region enclosed by it. The area of a circle is given by the formula: A = πr², where A is the area of the circle and r is its radius. The symbol π represents the constant pi, which is approximately equal to 3.14.

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Ned will have travelled 2/9 mile after 1 hour

From the question, we have the following parameters that can be used in our computation:

Ned walked 1/9 of a mile in one 1/2

using the above as a guide, we have the following:

Rate = (1/9)/(1/2)

Evaluate the the quotient

Rate = 2/9

This means that he will have travelled 2/9 mile after 1 hour

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Therefore, 49% of 37.95m is approximately 18.60m when rounded to 2 decimal places.

To find 49% of 37.95m, we can multiply 37.95m by the decimal equivalent of 49% (0.49).

Multiplying these two values, we get:

49% * 37.95m = 0.49 * 37.95m ≈ 18.5955m

Now, to round the answer to 2 decimal places, we look at the third decimal place. If it is 5 or greater, we round up; otherwise, we round down. In this case, the third decimal place is 5, so we round up the second decimal place:

18.5955m rounded to 2 decimal places is approximately 18.60m.

Therefore, 49% of 37.95m is approximately 18.60m when rounded to 2 decimal places.

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To find the distance between the library and the firehouse in Adams, we can use the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

In this case, the library and the firehouse form the two sides of a right triangle, with the school being the right angle. The distance between the library and the school is 16 kilometers (south) and the distance between the firehouse and the school is 12 kilometers (west).

Using the Pythagorean theorem, we can calculate the distance between the library and the firehouse:

[tex]Distance^2 = (Library-School Distance)^2 + (School-Firehouse Distance)^2[/tex]

[tex]Distance^2 = 16^2 + 12^2[/tex]

[tex]Distance^2 = 256 + 144[/tex]

[tex]Distance^2 = 400[/tex]

Taking the square root of both sides, we find:

Distance = √400

Distance = 20 kilometers

Therefore, the distance between the library and the firehouse in Adams is 20 kilometers.

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Given that Irma's family arrived at the beach at 1:57 PM, swam in the ocean for 1 hour and 35 minutes, built sandcastles for 48 minutes, and played volleyball for 1 hour and 56 minutes. We need to determine the time when Irma's family left the beach.

To find out, we will need to add up the total time that they spent at the beach:

1 hour and 35 minutes spent swimming in the ocean + 48 minutes spent building sandcastles + 1 hour and 56 minutes spent playing volleyball = 4 hours and 19 minutes

Therefore, if Irma's family arrived at the beach at 1:57 PM, and they spent a total of 4 hours and 19 minutes there, then they would have left the beach at:

1:57 PM + 4 hours and 19 minutes = 6:16 PM

Therefore, the time when Irma's family left the beach was 6:16 PM

In summary, Irma's family arrived at the beach at 1:57 PM, and spent a total of 4 hours and 19 minutes there. They spent 1 hour and 35 minutes swimming in the ocean, 48 minutes building sandcastles, and 1 hour and 56 minutes playing volleyball. To find out what time they left the beach, we added up the total time that they spent there. From this, we found that they would have left the beach at 6:16 PM. Therefore, the answer is 6:16 PM.

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The length of overline A'B' after the dilation is 1/2 of the length of overline AB. The measure of angle A′ is 28°.

Given:AABC is dilated by a factor of to produce 1/2 triangle A′B′C′. A (62 degrees), B (16), C. To find:A′B′ and the measure of angle A′.Using the concept of dilations:Now, we need to find the measure of angle A′.Here, A′ is the image of A after the dilation.Since AABC is dilated by a factor of to produce 1/2 triangle A′B′C′.Therefore, the measure of angle A′ = 28°.Hence, the main answer is,The length of overline A'B' after the dilation is 1/2 of the length of overline AB. The measure of angle A′ is 28°.

As we know that, Dilations are like scaling and resizing. It is a transformation that changes the size of a shape but not its orientation or position. It is also called scaling by a factor. There are two types of dilations. They are:Enlargement: The new shape is larger than the original. The scaling factor is greater than 1.Reduction: The new shape is smaller than the original.The length of A′B′ is 1/2 of the length of AB.Measure of angle A′:Here, A′ is the image of A after the dilation.Since AABC is dilated by a factor of to produce 1/2 triangle A′B′C′.Therefore, the measure of angle A′ = 28°.The length of overline A'B' after the dilation is 1/2 of the length of overline AB. The measure of angle A′ is 28°.

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To determine the greatest number of miles Kelly can travel with her $80 budget, we need to calculate the maximum number of miles she can afford based on the rental cost per mile.

Using the given information that the rental fee is $25 plus $1.50 per mile, we can set up an equation and solve for the number of miles.

Let's denote the number of miles traveled as 'm'. The total cost of renting the truck can be expressed as the sum of the one-time fee and the cost per mile: $25 + $1.50m.

Since Kelly has a budget of $80, we can set up an equation: $25 + $1.50m ≤ $80. To find the maximum number of miles, we need to solve this inequality for 'm'.

Subtracting $25 from both sides of the inequality gives: $1.50m ≤ $55.

To isolate 'm', we divide both sides of the inequality by $1.50: m ≤ 36.66.

Since we cannot have a fraction of a mile, the maximum number of miles Kelly can travel is 36 miles.

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Marcus’s average speed is 2 miles per hour less than Jane’s average speed.

From the given information, it is stated that Marcus's average speed is 2 miles per hour less than Jane's average speed. Therefore, Marcus's average speed is slightly slower than Jane's average speed. This can be observed on the graph where Marcus's line would be slightly below Jane's line.

The equation given for Jane's average speed is y = 6x, where x represents the number of hours and y represents the number of miles. This equation implies that for every hour Jane runs, she covers 6 miles. Marcus's average speed, being 2 miles per hour less than Jane's, would be represented by the equation y = 6x - 2. Thus, for every hour Marcus runs, he covers 6 miles minus 2 miles, which is 4 miles.

In conclusion, Marcus's average speed is 2 miles per hour less than Jane's average speed. This means that Jane has a slightly faster pace than Marcus during the marathon.

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The growth of Manchester during the Industrial Revolution gave rise to several issues that had significant social, economic, and environmental implications.

As a result, reactions to these issues emerged and evolved over the course of the nineteenth century.

One major issue raised by the growth of Manchester was poor working and living conditions for the working class. Rapid industrialization led to the establishment of large factories and mills, which attracted workers from rural areas. These workers often faced long working hours, low wages, and hazardous working conditions. They lived in overcrowded and unsanitary slums, lacking proper housing, sanitation, and access to basic amenities. These harsh conditions resulted in widespread poverty, disease, and social unrest.

In response to these issues, various movements and reforms emerged throughout the nineteenth century. The labor movement gained momentum as workers organized themselves to demand better working conditions, higher wages, and shorter hours. The formation of trade unions aimed to protect workers' rights and negotiate with employers. Additionally, reformers such as Robert Owen and the Chartists advocated for social and political reforms to address the plight of the working class.

Another issue that arose with the growth of Manchester was environmental degradation. The rapid expansion of industries led to pollution of air and water sources. Factories emitted smoke and pollutants, contributing to air pollution and poor air quality. Rivers and streams became contaminated with industrial waste and sewage, leading to water pollution and health hazards.

As awareness of these environmental issues grew, there were efforts to address them. The establishment of legislation and regulations aimed to control pollution and improve public health. For example, the Alkali Act of 1863 imposed restrictions on the emission of harmful gases from factories. These measures, although limited, marked the beginning of environmental consciousness and attempts to mitigate the negative impact of industrialization.

Furthermore, the growth of Manchester highlighted class divisions and inequalities. The wealthy factory owners and industrialists thrived while the working class suffered. This socioeconomic divide led to social tensions and movements advocating for greater equality and social reforms.

Throughout the nineteenth century, the issues raised by the growth of Manchester prompted a gradual transformation in society. Reactions to these issues ranged from grassroots movements to legislative reforms. Although progress was often gradual and incremental, the recognition of the hardships faced by the working class and the need for improved working conditions, social reforms, and environmental conservation laid the groundwork for future advancements in labor rights, social equality, and environmental protection.

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The pattern to the number series 5, 12, 26, ____, 110, 222 is 50. There are different methods to solve the pattern. For example, you can find the difference between consecutive numbers and check if it follows a pattern.

The pattern to the number series 5, 12, 26, ____, 110, 222 is 50.

How?

There are different methods to solve the pattern. For example, you can find the difference between consecutive numbers and check if it follows a pattern. Here, I am using this method to explain the answer. To start, we will find the difference between consecutive numbers.

5 to 12 = 7 (12 - 5 = 7)

12 to 26 = 14 (26 - 12 = 14)

26 to ____ = ?

____ to 110 = 84 (110 - ____ = 84)

110 to 222 = 112 (222 - 110 = 112)

Now, we will find the difference between the second difference.

7 to 14 = 7 (14 - 7 = 7)

14 to ____ = ?

____ to 84 = 70 (84 - ____ = 70)

84 to 112 = 28 (112 - 84 = 28)

Since we are given 5, 12, 26, ____, 110, 222

fill in the patterning blank, we need to find the blank space. So, let's work on that.

7 to 14 = 7 (14 - 7 = 7)

14 to ____ = ?

7 + 7 = 14

____ = 28 (14 + 14 = 28)

28 to 84 = 56 (84 - 28 = 56)

84 to 112 = 28 (112 - 84 = 28)

28 + 28 = 56

Hence, the blank in the patterning is 50. This number series has a pattern to solve. If you learn how to solve such patterns, you can easily find the blank in any patterning series. There are different methods to find the answer, as explained above, but the one I used is the most common one. Here, we found the difference between consecutive numbers and checked if it follows a pattern. The pattern we found is that the second difference is constant. The second difference is the difference between the first difference of the consecutive numbers. When we calculated the second difference, we found that the blank in the patterning series is 50. It means that the difference between 26 and the blank is 28, and the difference between the blank and 110 is 84.

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The scuba diver's elevation is changing at a rate of 1 foot per 8 seconds, with a negative sign indicating descent. The change in elevation of the scuba diver can be calculated by subtracting her initial elevation from her final elevation.

The initial elevation is 18 feet below sea level, and the final elevation is 20 feet below sea level. Therefore, the change in elevation is -20 - (-18) = -20 + 18 = -2 feet.

The time it took for the elevation to change from -18 feet to -20 feet is given as 8 seconds. To find the rate of change of elevation, we divide the change in elevation by the time taken: -2 feet / 8 seconds = -0.25 feet per second.

The negative sign indicates that the elevation is decreasing, or the diver is descending. Therefore, the scuba diver's elevation is changing at a rate of 0.25 feet per second (with the negative sign indicating descent).

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The system of equations that could be used to solve the problem is:

1. p + c = 10   (equation representing the total weight of the mixture)

2. 4.00p + 6.50c = 4.75(10)   (equation representing the cost of the mixture)

Let's break down the given information and use it to set up the system of equations.

1. Total weight equation:

The grocer wants to make a 10-pound mixture of peanuts and cashews. Since we are given that p represents the pounds of peanuts and c represents the pounds of cashews, we can write the equation:

p + c = 10

2. Cost equation:

The grocer wants to sell the mixture for $4.75 per pound. The cost of the peanuts is $4.00 per pound and the cost of cashews is $6.50 per pound. To calculate the total cost, we multiply the cost per pound by the weight of each component (peanuts and cashews) and sum them up. This can be expressed as:

4.00p + 6.50c = 4.75(10)

By setting up this system of equations, we can solve for the values of p and c, which represent the pounds of peanuts and cashews, respectively, that the grocer should use in order to make the 10-pound mixture.

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`The measure or dimensions of the shorter sides will be 2.65 cm, given that the longer sides measure 40. 5 centimeters and the shorter sides measure 34. 5 centimeters and the scale-factor used for reduction is 13.

Given that,

The longer sides of the rectangular measure 40.5 cm.

The shorter sides of the rectangular measure 34.5 cm.

Scale factor = 13.

The scale factor is the ratio of the length of a side of one figure to the length of the corresponding side of the second figure.

To find the measure of the shorter sides of a rectangle, multiply the length of the shorter sides by the scale factor.Abby decides to reduce the scale drawing of her living room by a scale factor of 13.

Multiply 34.5 cm by 1/13 to find the length of the shorter sides in the reduced scale drawing as follows;`

34.5*1/13=2.65

The measure of the shorter sides will be 2.65 cm.

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To find the constant of proportionality in a proportional relationship, we can calculate the ratio between the y-values and the corresponding x-values. Let's calculate the ratios for each pair:

For the pair (3, 4):

Ratio = 4 / 3 = 1.33

For the pair (5, 5):

Ratio = 5 / 5 = 1

For the pair (7, 7.5):

Ratio = 7.5 / 7 = 1.07

For the pair (11, 10.5):

Ratio = 10.5 / 11 = 0.95

We can see that the ratios are not constant, which means that the relationship is not proportional. Therefore, there is no constant of proportionality for this relationship.

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Joseph's car holds 16 gallons of gas and has driven 68 miles, resulting in a remaining tank level of 12 gallons. Joseph's car runs on 17 miles per gallon, and it would cost $8.08 to refill his tank on Friday.

To determine the car's miles per gallon (MPG), we divide the total miles driven by the number of gallons used. Additionally, we can calculate the cost of refilling Joseph's tank by multiplying the price per gallon by the number of gallons needed to reach a full tank.

To find the car's miles per gallon (MPG), we divide the total miles driven (68) by the number of gallons used (16 - 12 = 4). Therefore, the car runs on 68/4 = 17 miles per gallon.

Next, we calculate the cost to refill Joseph's tank on Friday. Since the tank holds 16 gallons and currently has 12 gallons, we need to fill it with 16 - 12 = 4 gallons. Given that gasoline costs $2.02 per gallon, the total cost to refill the tank is 4 * $2.02 = $8.08.

Therefore, Joseph's car runs on 17 miles per gallon, and it would cost $8.08 to refill his tank on Friday.

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Given, Aika is building a square garden. She places a garden post at (3.5, 3.5)

To find: The location of the corner that reflects (3.5, 3.5) across the y-axis.

We know that the y-axis is the vertical line through the point (0,0) and it divides the plane into two parts: left and right. When we reflect a point across the y-axis, the x-coordinate changes sign. For example, the reflection of (2,3) is (-2,3).Therefore, the reflection of (3.5, 3.5) across the y-axis is (-3.5, 3.5)

Since Aika is building a square garden, the corner opposite to (3.5, 3.5) will have coordinates (-3.5, -3.5).

Hence, the location of the corner that reflects (3.5, 3.5) across the y-axis is (-3.5, -3.5).

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The expression simplifies to r(r+8) which is not equivalent to 9r. Hence, option F is correct.

Given the expression: r² + 5r + 3r

Collecting like terms

r² + 5r + 3r = r² + 8r

Only values of r which have the same power values would be added together, hence, only 5r and 3r have power value of 1. Hence, they would be added together.

r² has a power value of 2. Hence, it would be dealt with separately.

Factorizing r² + 8r

r(r + 8) = r² + 8r

Therefore, the equivalent expression is r(r + 8)

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The inner height of the culvert, given the outer height and the outer width, would be 105 cm.

The culvert is essentially a rectangular structure, and the thickness affects both the height and the width.

To calculate the inner height of the culvert, you subtract twice the thickness of the culvert from the outer height, because the thickness is taken off from both the top and the bottom of the culvert.

Inner height = Outer height - 2 x (Thickness)

= 135 cm - 2 x 15 cm

= 135 cm - 30 cm

= 105 cm

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In parallelogram ABCD, what is the relationship between angle a° and angle b° is: a° = b°.

Correct answers of given question are given below:

1. The correct relationship between angle a° and angle b° in parallelogram ABCD is: a° = b°. In a parallelogram, opposite angles are congruent, meaning they have the same measure. Therefore, angle a° and angle b° have equal measures.

2. The area of rectangle FGHK can be calculated by multiplying the length and width. However, the width is not given in the information provided. Therefore, it is not possible to determine the area of the rectangle based on the given information. The correct answer cannot be determined.

3.In rectangle FGHK, FC = CH = 8.5 cm. Since FC and CH are equal, they represent the width of the rectangle. The length of the rectangle is not provided in the information. Therefore, it is not possible to determine the length of GK based on the given information. The correct answer cannot be determined.

4. The correct relationship between angle e and angle g in parallelogram EFGH is: e° = g°. In a parallelogram, opposite angles are congruent, meaning they have the same measure. Therefore, angle e° and angle g° have equal measures.

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