Please solve by hand

7-45 A home mortgage with monthly payments for 30 years is available at 6% interest. The home you are buying costs $120,000, and you have saved $12,000 to meet the requirement for a 10% down payment. The lender charges "points" of 2% of the loan value as a loan origination and processing fee. This fee is added to the initial balance of the loan. (a) What is your monthly payment? (b) If you keep the mortgage until it is paid off in 30 years, what is your effective annual interest rate? (c) If you move to a larger house in 10 years and pay off the loan, what is your effective annual interest rate? (d) If you are transferred in 3 years and pay off the loan, what is your effective annual interest rate