A mortgage balance of $30,000 is to be repaid over a 12 -year term by equal monthiy payments at 5.7% compounded semi-annually. At the request of the mortgngor, the monthly payments were set at $400. (a) How many payments will the mortgagor have to make? (b) What is the size of the last parment? (c) Determine the diflecence between the total amount rocuired to amortize the mortgape with the contractual monthly payments rounded to the nearest cent and the total actual ampunt paid. (a) The mortgagor wil have to make payments. (Round up to the nearest whole number.) (b) The size of the last payment will be s (Round the final arswer to the nearest cont os needed. Round all intermediate values fo six decimal ploces as needed.) (c) The difierence is 5 (Round the final answer to the neareat cent as needed. Round all intermediate values to six decimal places as needed)