The debt is amortized by the periodic payment shown. Compute (a) the number of payments required to amortize the debt; (b) the outstanding principal at the time indicated. Payment Conversion Outstanding Debt Principal Debt Payment Interest Rate Interval Period Principal After: $15,000 $1,061 3 months 9% monthly 8th payment (a) The number of payments required to amortize the debt is (Round up to the nearest integer.) (b) The outstanding principal is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)