13. The owner of a hotel borrowed $13 000 at 7.8 % compounded semi-annually and agreed to repay the loan by making payments of $750 at the end of every 4 months. a. How much payments will be needed to repay the loan? b. How much will be owed at the end of 5 years? c. By the end of 5 years of payments, what is the total interest payed? 14. A contract valued at $28 000 requires payments of $6500 every 6 months. The first payment is due in 5 years and interest is 12 % compounded semi-annually. a. How many payments are required? b. What is the size of the last payment