Milo wants to put a fence around the dog park near his house. He measures the sides and finds they are 7 m and 8 m long. He multiplies 7×2 and 8×2 and finds he needs 30 m of fencing. Which measurement does 30 m?

Choose 1

(Choice A)

Perimeter

(Choice B)

Length

(Choice C)

Area

(Choice A) Perimeter

Step-by-step explanation:

It can't be the length, because it states in the question that the length is 7 m

and it can't be the area because lw = 7(8) = 56 is the area.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2