To offset the cost of buying a $120,000 house, Jose and Sophia borrowed S25,000 from their parents at 6% nominal interest, compounded monthly. The loan from their parents is to be paid off in 5 years in equal monthly payments. The couple has saved $12,500. Their total down payment is therefore $25,000 + 12,500 = $37,500. The balance will be mortgaged at 9% nominal interest, compounded monthly for 30 years. Find the combined monthly payment that the couple will be making for the first 5 years