Milton Investments borrowed $32 000 at 11% compounded semi-annually. The loan is repaid by payments of $4500

Question:

Milton Investments borrowed $32 000 at 11% compounded semi-annually. The loan is repaid by payments of $4500 due at the end of every six months.
(a) How many payments are needed?
(b) How much of the principal will be repaid by the fifth payment?
(c) Prepare a partial amortization schedule showing the details of the last three payments and totals.