A 593,000 mortgage is to be amortized by making monthly payments for 15 years. Interest is 8.1% compounded semi-annually for a sl-year term (a) Compute the size of the monthly payment (b) Determine the balance at the end of the six-year term. c) If the mortgage is renewed for a six-year term at 3% compounded semi-annually, what is the sce of the monthly payment for the renewal term