Rate of inflation in Sardonia is such that the price of a car costing $28000 in US currency will double in 9 years. What's the annual rate of inflation? What will be the price of this car in 3 years?

Question

The annual rate of inflation is %. (Round to two decimal places as needed)

The price of the car in 3 years will be $. (Use the answer from part 1 to find this answer. Round to the nearest cent as needed.)

I need this before 11:59 PM tonight.

Answer 1

2 = e^9k

ln 2 = 9k

0.6931 ≈ 9k

0.0770 ≈ k

A(3) = 28000e^(3)(0.0770)