You are considering taking out an $800,000 30-year loan with equal monthly payments with a bank, which quotes annual rates on its deposits and loans of 1.2% and 3.6%, respectively.Without constructing a loan amortization schedule,

-calculate the amount of interest that will be paid in the first month of the 25th year into the loan.

-calculate the total amount of interest that will be paid over the life of the loan.