The general equation for depreciation is given by y= A(1-r), where y current value, A= original cost, r = rate of depreciation, and t= time, in years. A car was purchased 6 years ago for $25,000. If the annual depreciation rate is 11%, which equation can be used to determine the approximate current value of the car? y-25,000(0.89) y-(25,000-0.11) y-(25,000-0.89) y-25,000(0.11)