Four years ago Marc and Rebecka purchased a home and got a $693,779 mortgage with a 30 -year amortization at 8.25% interest compounded semi-annually and biweekly payments. The term of the mortgage is now over, and they are renewing on the same amortization timeline for a five-year term at 4.75% interest compounded semi-annually and weekly payments. For full marks your answer should be rounded to the nearest cent. a) What is the balance remaining after the first term? b) How much are the new payments for the second term