12) JCT Auto Financial loans you $24,000 for four years to buy a car. The loan must be repaid in 48 equal monthly payments. The annual interest rate on the loan is 9 percent. What is the monthly payment? 13) If you wish to accumulate $250,000 in the child's college fund after 18 years, and can invest at a 9% annual rate, how much must you invest at the end of each year if the first deposit is made at the end of the first year