Find the weighted average cost of capital for a firm that has a debt$-$to$-$equity ratio of $1\frac{1}{2},$ a tax rate of $34\%,$ a levered cost of equity of $12\%$ and a pre$-$tax cost of debt of $10\%.$

$10\mathrm{.}60\%$

$7\mathrm{.}96\%$

$8\mathrm{.}76\%$

$9\mathrm{.}84\%$