The sprinter can run 30 feet per second.
Answer:

Step-by-step explanation:
The limit is:

so, you have an indeterminate result. By using the l'Hôpital's rule you have:

by replacing, and applying repeatedly you obtain:

hence, the limit of the function is -1/14
The formula is
A=p (1+r)^t
A future value 75000
p present value?
R interest rate 0.08
T time 17 years
Solve the formula for p
P=A ÷ (1+r)^t
P=75,000÷(1+0.08)^(17)
P=20,270.17