D because the shaded region has one side and subtract by pie and substitute to get this answer.
The coefficient would be c I believe I may be wrong
Step-by-step explanation:
to calculate circumference:

if the diameter is 16 then the radius would be 8.

to calculate the area of a circle:

First, expand to make it easier
y=x(x^2+5)(x^2+5)
y=x(x^4+10x^2+25)
y=x^5+10x^3+25x
differentiation
y'=5x^4+30x^2+25 is the derivitive
Answer:
Piper traveled 115 miles for 6 hours.
Step-by-step explanation:
We just add the amount of distance that Piper traveled together, so "55+60 = 115 miles" and then we add the amount of time it took to travel that distance. So "3.5 + 2.5 = 6 hours".