An equation for the depreciation of a car is given by y = a(1 - 1)', where y = current value of the car, a = original cost, r = rate of
depreciation, and t = time, in years. the value of a car is half what it originally cost. the rate of depreciation is 10%.
approximately how old is the car?
3.3 years
5.0 years
5.6 years
6.6 years