The debt is amortized by equal payments made at the end of each payment interval. 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. Debt Principal Repayment Peri 6 years Payment Interval Interest Rate Conversion 12% semi-annually Outstanding Principal After: Period $18,000 6months 8th payment (a) The size of the periodic payment is d the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.) (Roun (b) The outstanding principal after the 8th payment is s Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed,) (c) The interest paid by the 9th payment is $ (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal placos as needed.) (d) The principal repaid by the 9th payment is s (Round the final answer to the nearest cent as needed. Round all intermediate values to six decimal places as needed.)