Anew car was valued at $28,000, and it's value depreciated to $14,000 over the next 3 years. use the exponential equation for depreciation to answer the following questions. a) what was the annual percent rate of depreciation, to 2 decimal places? your answer will be a positive number. r r = %. b) assume that the car value continues to drop by the same percentage. what will the value of the car be when the car is 10 years old? value = $ round to the nearest dollar.