1)What is the monthly mortgage payment for a 25-year loan (end of period) with an initial loan amount of $425,000 and an annual interest rate of 8.75%?

2)How many years will it take to amortize a $200,000 loan at a nominal annual interest rate of 12% if monthly payments are $2,064.72?

3)What is the annual debt service on a $75,000 loan with monthly payments over 20 years at a nominal annual rate of 9%?