15. The front of a storage bunker can be modeled by y = - (x - 72)(x + 72) where x and y
are measured in inches. The x-axis represents the ground. Find the width of the bunker at
ground level.
I
What is the width of the bunker at ground level?

i think you would have to divide the money he had saved, which is $2,000 by the time he plans on exercising which is 40 hours, and the answer you get should tell you the answer to your question.

f(x) is   are being squared

g(x) is   increasing by 2

h(x) is adding .25 each time

k(x) is taking the square root

f(x) and k(x) are exponential functions

median- 36f

mode - none

mean- 33.7 ~ 34f