M24C- Jessie walced three miles in hour 1 of a four hour wake-thon She then decided to keep track of her speed and distance walced each of the
three remaining hours. The piecewise function below estimates the distance
she travels in miles)

114 plus 113 times 2 and 114 times 3

2 equivalent expressions to represent the area of a rectangle and the top is n-3 and the side is 2

area of the rectangle = length * width

given length = n - 3

width = 2

replace it in the area

so area of the rectangle = (n-3) *2

= 2(n-3)

one of the expression is 2(n-3)

to get another expression we distribute 2 inside the parenthesis

2(n-3) is 2n - 6

so another expression is 2n - 6

two equivalent expression are

2(n - 3)   , 2n - 6

the answer is  

c.

14,469 cubic feet

i know this one is right