A professional couple wishes to purchase a new home costing $750,000, make a 20 percent down payment, and finance the remaining $600,000. The rate quoted for a conventional 30-year loan is 6.7084 percent interest with 2.075 percent in points and no other closing costs. (Round your answers to the nearest whole dollar for parts a-c. The tolerance is +/- 4.00. For parts d and e round to 4 decimal places. The tolerance is +/- 0.0001.) a. What is the amount of the monthly payment if the points are paid at the time of closing and not added to the loan? 3,875.01 b. What is the amount of the monthly payment if the points are added to the loan? 3,955.42 c. If, immediately after the one hundred twentieth payment (10 years), the professional couple decides to sell the house, what will be the unpaid balance on the loan with the points added to it? 521,896.80 d. Determine the effective annual interest rate for the loan with points added to it. 7.13% e. Use the additive approach to determine the APR (see Example 3.6 ). 6.90951%, Ar[eda) - 6.90951 12450 APR(sub) = %, APR(add) = A professional couple wishes to purchase a new home costing $750,000, make a 20 percent down payment, and finance the remaining $600,000. The rate quoted for a conventional 30-year loan is 6.7084 percent interest with 2.075 percent in points and no other closing costs. (Round your answers to the nearest whole dollar for parts a-c. The tolerance is +/- 4.00. For parts d and e round to 4 decimal places. The tolerance is +/- 0.0001.) a. What is the amount of the monthly payment if the points are paid at the time of closing and not added to the loan? 3,875.01 b. What is the amount of the monthly payment if the points are added to the loan? 3,955.42 c. If, immediately after the one hundred twentieth payment (10 years), the professional couple decides to sell the house, what will be the unpaid balance on the loan with the points added to it? 521,896.80 d. Determine the effective annual interest rate for the loan with points added to it. 7.13% e. Use the additive approach to determine the APR (see Example 3.6 ). 6.90951%, Ar[eda) - 6.90951 12450 APR(sub) = %, APR(add) =