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 Principle $=15,000$