Using data in a car magazine, we constructed the mathematical model y = 100e^–0.03045t for the percent of cars of a certain type still on the road after t years. Find the percent of cars on the road after the following
numbers of years.
a. 0 

b. 2 

c. 4 

d. 6

Find the rate of change of the percent of cars still on the road after the following numbers of years.

e. 0 

f. 2

g. Interpret your answers to parts e and f.