Miranda wants to buy pencils with the school mascot. The graph above represents the cost for different numbers of pencils.

What is the cost per pencil?
• $0.12

• $0.16

• $1.12

• $8.30

Answer:

10 miles

Step-by-step explanation:

35/7 is 5 so therefore if you do 5+5+5+5+5+5+5 is 35

so that means 2 gallons which is 10

Answer:

90

Step-by-step explanation:

900 in groups of 10 would need 90 groups to equal 900.

Answer:

90

Step-by-step explanation:

We also have 9 tens, which means we can say 9×10=90. And we have 24 ones, which means we can say 24×1=24.

Answer:

40 ÷ 1

Step-by-step explanation:

Speed = Distance : Time

Speed = 40 ÷ 1

just get the area for all of them and add legth time width

Answer:

(you'll have to read the explanation)

Step-by-step explanation:

There are 8 lines from 1 to 2, so plotting 1 1/2 (or 1.5) is right in between. I'm not sure how to add the picture back into the explanation, but I will try my best to explain. You want to plot your point for 1 1/2 4 lines after the 1. For the 2 1/4, you want to plot your point on the second line from the 2. Let me know if it doesn't make sense!

Answer: See the attached image below

1 1/2 is located at the exact midpoint between 1 and 2.

2 1/4 is located 2 tickmarks to the right of 2.

===================================================

Explanation:

Think of 1/2 as 4/8

The number 1 1/2 is the same as 1 4/8

So we start at 1 and move 4 tickmarks to the right to get at the exact midpoint (note there are 8 tickmarked spaces between any two whole numbers).

This places us exactly at the midpoint between 1 and 2.

-----------------

To plot 2 1/4, we will effectively plot 2 2/8 since 1/4 = 2/8

We start at 2 and then move 2 tickmarks to the right to arrive at 2 2/8

Answer:

16b^4-9

Step-by-step explanation:

Factoring gives us 16b^4+12b^2-12^2-9. Simplifying gives us the answer which is 16b^4-9

Answer:

[tex]16b^4-9[/tex]

Step-by-step explanation:

When multiplying binomials, we can use a method called FOIL (First-Outside-Inside-Last).

For [tex](t_1+t_2)(t_3+t_4)[/tex], let:

[tex]t_1\implies \text{First Term},\\t_2\implies \text{Second Term},\\t_3\implies \text{Third Term},\\t_4\implies \text{Fourth Term}[/tex]

In the FOIL method, the steps go:

[tex]\text{\textbf{F}irst: Multiply the first and third terms (first term of each binomial)},\\\text{\textbf{O}utside: Multiply the first and fourth terms},\\\text{\textbf{I}nside: Multiply the second and third terms},\\\text{\textbf{L}ast: Multiply the second and fourth terms (last term of each binomial) }[/tex]

Given [tex](4b^2+3)(4b^2-3)[/tex], we have:

[tex]\text{First: }4b^2\cdot 4b^2,\\\text{Outside: }4b^2\cdot -3,\\\text{Inside: }3\cdot 4b^2,\\\text{Last: }3\cdot -3,\\\rightarrow 16b^4-12b^2+12b^2-9[/tex]

Combine like terms:

[tex]\boxed{16b^4-9}[/tex]