Fred borrowed $25,000 today for his new speedboat. He agreed to make monthly payments of $750, with the first payment today and the second payment in 1 month etc.). Assume interest rates are i(12) = 18%. (a) How many regular payments (of $750) will Fred need to make? (b) What is the size of the final smaller drop payment (one period after the final regular payment of $750) needed to fully repay the loan