(6) Consider a 30-year loan of 7500,000 . Let the nominal rate of interest convertible monthly be 1.2%. The loan is repaid with level payments made at the end of each month. (a) Compute the total interest paid over the term of the loan. (b) Compute the loan balance at the end of 20 years. (c) Compute the total interest paid over the first 8 years. (d) Compute the total principal paid during the first 19 years. (7) Consider a loan of 25,000 . You make end of the year payments for 15 years to settle the loan. However, after the 5th payment, you decide to increase the payment by X to settle the loan in 10 years. If i=10%, compute X