Jacqueline planned to buy a house but could afford to pay only $12,500 at the end of every 6 months for a mortgage with an interest rate of 3.90\% compounded semiannually for 20 years. She paid $21,500 as a down payment. a. What was the maximum amount she could afford to pay for a house? b. What was her total investment through the mortgage period (not taking the timevalue of money into account)? Round to the nearest cent c. What was the total amount of interest paid through the mortgage period