A woman buys an apartment house for $1,250,000 by making a down payment of $250,000 and amortizing

Question:

A woman buys an apartment house for $1,250,000 by making a down payment of $250,000 and amortizing the rest of the purchase price with monthly payments over the next 10 years. The interest rate on the debt is 7.2%, compounded monthly.
(a) The size of each payment.
(b) The total amount paid for each purchase.
(c) The total interest paid over the life of the loan.