ThreeTree Inc. has an unlevered cost of capital of $18\%,$ a cost of debt of $6\%,$ and is $35\%$ financed with debt. There are no corporate taxes.

$21.$ What would be the firm$$s levered cost of equity?

A$)14\mathrm{.}25\%$

B$)18\mathrm{.}00\%$

C$)16\mathrm{.}00\%$

D$)17\mathrm{.}11\%$

E$)24\mathrm{.}46\%$

$22.$ If the firm were to change its capital structure so that it is financed with $60\%$ debt, what would be the new WACC?

A$)18\mathrm{.}00\%$

B$)13\mathrm{.}67\%$

C$)16\mathrm{.}79\%$

D$)25\mathrm{.}20\%$

E$)24\mathrm{.}46\%$