Abby and Jason are building a new house. They obtained a construction loan of $100,000, which will be rolled over into a conventional 20-year mortgage when the house is complete in 14 months. Simple interest of 0.5% per month will be charged on the construction loan. The 20-year mortgage will carry a 6% interest rate with monthly payments. What is the monthly payment that Abby and Jason will make? if they make each payment as scheduled for the life of the 20-year mortgage, how much total interest will they pay on the house?