A person bought a car for 21 022 After 3 years the car was worth 11 984 Assume that the price is decreasing according to the continuous exponential decay model P Poet a Find the annual depreciation rate r to the nearest tenth of a percent b Find the value of the car after 5 years to the nearest hundred dollars a What is the annual depreciation rate Do not round until the final answer Then round to one decimal place as needed