Mulanx Corporation has targeted Capital structure of $46\%$ Common stock $10$ preferred stock and the balance in debt is cost of equity is $15\mathrm{.}8\%$ and the preferred stock is $8\mathrm{.}3\%$ and the before the tax cost of debt is $6\mathrm{.}8\%$ what is the WACC given the Tax rate of $22\%?$