Assume you purchase a $325,000 townhouse and you put 25 percent down as a down payment. You obtain a 30-year fixed-rate mortgage with an annual interest rate of 7.75 percent. Based upon this information, answer the following questions. [3 Parts] [10 pts.] Show all work. Clearly label your answers for Part A, Part B, and Part C. Carry all calculations out to four (4) decimal places (except dollars and cents). Highlight in bold your answer. a) Determine how much your monthly payments will be under your 30-year fixed-rate mortgage. (3 pts) b) After five years you refinance the mortgage obtaining a new 25 year fixed-rate mortgage. The bank offers you a rate of 5.00 percent. The bank also offers you a point buy down of up to 3 points. You decide to take the 3 points. After you refinance, what is the new monthly payment (to the nearest dollar)? (5 pts) c) How much ($) will the points cost you to get the point buy down? (2 pts)