Homework: Online 5.4 Save Score: 0 of 1 pt 6 of 8 (5 complete) HW Score: 43.75%, 3.5 of 8 pts 5.4.44-BE Question Help A man buys a house for $240,000. He pays $20,000 down and takes out a mortgage at 66% on the balance. Find is monthly payment and the total amount of interest he will pay if the length of the mortgage is (a) 15 years, (b) 20 years, (c) 25 years (d) When will half the 20-year loan be paid off? (a) For the 15-year mortgage, the man will make monthly payments of (Do not round until the final answer. Then round to the nearest cont)