what is the cost of equity?

\begin{tabular}{|l|r|} \hline Capital Structure & \\ \hline Debt: & 45% \\ \hline Preferred Stock: & 45% \\ \hline Equity: & 10% \\ \hline DEBT: & 15% \\ \hline Preferred Stock & \\ \hline Sales Price (par value): & $150 \\ \hline Dividend: & $50 \\ \hline Common Stock & \\ \hline Sales Price: & $80 \\ \hline Dividend: & $20 \\ \hline Expected Growth Rate: & 9% \\ \hline Effective Tax Rate: & 24% \\ \hline \end{tabular}