A $85,000 mortgage is to be amortized by making monthly payments for 20 years. Interest is 6.1% compounded semi-annually for a seven-year term. (a) Compute the size of the monthly payment. (b) Determine the balance at the end of the seven-year term. (c) If the mortgage is renewed for a seven-year term at 4% compounded semi-annually, what is the size of the monthly payment for the renewal term? a) The size of the monthly payment is $ enter your response here. (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) Part 2 (b) The balance at the end of the -year term is $ enter your response here. (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) Part 3 (c) The size of the monthly payment for the renewal term is $ enter your response here. (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)