Sample Test Problem 6.06 Robert Williams currently has $7,900 in the bank earning interest of 8 percent per year, compounded monthly. If he needs $23,700 to purchase a car and can save an additional $100 a month stating at the end of this month, how long will it take him to accumulate the $23,700? (Round all intermediate transactions to 5 decimal places and final answers to 1 decimal place, e.g. 52.7.) Number of years years Number of months months