Many assets such as cars and furniture depreciate (loose value ) following a linear function of time, each year Loosing a fixed percentage of the initial value. Suppose the value of a car that initially costs $ 25, 000 depreciates by 7%% of its original value each year. Find a formula for its value P(t) aftert years. b) if a TV set is completely depreciated after 12 years ( linear depreciation) and its initial value is $800, find a formula for its value after years, W (+ )