(1 point) Fifteen years ago a couple purchased a house for $170,000.00 by paying a 20% down payment and financing the remaining balance with a 30-year mortgage at 6.5% compounded monthly. (a) Find the monthly payment for this loan. Monthly Payment: accurate to two decimal places) (b) Find the balance of the loan after 17 years and after 18 years? ii (Note: Your answer should include a dollar sign and be After 17 years After 18 years n= Loan Balance Loan Balance: (Note: The balance amounts should include a dollar sign and be accurate to two decimal places and n represents the number of payments left on the loan.) (c) Find the total amount of interest paid by the couple during the 18th year. Interest Paid During 18th year: and be accurate to two decimal places) (Note: Your answer should include a dollar sign