Diameter = 8 cm
radius = diameter/2 = 4 cm
A = pi * r^2
A = pi * (4 cm)^2
A = 16pi cm^2
Answer:

Step-by-step explanation:
Given


Required
Determine the profit function.
Profit function is calculated as thus:

So, we have:



Answer:
40 miles
Step-by-step explanation:
5 x 8 = 40 miles