calculate before tax cost of debt and after tax cost of debt (year 2019)

Exhibit-2 \begin{tabular}{|l|r|l|l|l|} \hline Treasury Bills Yielding (3 Month) & 2.45% & & & \\ \hline Treasury Bonds & & & Prime Rate & \\ \hline 1 year & 2.54% & & Commercial Paper Avg, & \\ \hline 5 year & 2.47% & & & 2.73 \\ \hline 10 year & 2.65% & & & \\ \hline \end{tabular}