The debt is amortized by equal payments made at the end of each payment interval.

Debt Principal	Repayment Period	Payment Interval	Interest Rate	Conversion Period	Outstanding Principal After:
$18,000	8 years	1 month	9%	monthly	8th payment

Compute

(a) the size of the periodic payments;

b) the outstanding principal at the time indicated;

(c) the interest paid by the payment following the time indicated; and

(d) the principal repaid by the payment following the time indicated for finding the outstanding principal.