exponential functions

Question 5 Use the following information to answer the next question. Not yet answered A vehicle was purchased for $40 000 in 2012. The book value of the vehicle can be modelled by the exponential Marked out of 2.00 function V(t) = 40 000(0.85)' where I(t) represents the book value in dollars and t represents time in years since the Remove purchase date. lag The number of years after the purchase date that the vehicle will be worth $8 000, rounded to the nearest year, is Select one: O a. 12 O b. 10 O C. 9 O d. 11