Use the rectangle shown to answer the question.
part a
what is the perimeter of the rectangle?
5x + 2
10x + 4
4x2 + 17x – 15
4x2 + 23x – 15

circle area = pi * radius^2

if diameter = 10 then radius = 5

circle area = pi * 5^2

circle area = pi * 25

circle area = 78.5398163397 square units

step-by-step explanation:

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.