After$-$tax cost of debt For each of the following $$1,000-$par$-$value bonds, assuming annual interest payment and a alculate the after$-$tax cost of debt.

Bond Life $($years$)$ Underwriting Fee Discount $(-)$ or Coupon interest

$\backslash$table$[[,,$Discount $(-)$ or$,$rate,$],[$A$,20,$$$25,$premium $(+),9\%$