Bermuda Cruises issues only common stock and coupon bonds. The firm has a debt$-$equity ratio of $1\mathrm{.}21.$ The cost of equity is $12\mathrm{.}5$ percent and the pretax cost of debt is $7\mathrm{.}1$ percent. What is the capital structure weight of the firm's equity if the firm's tax rate is $25$ percent?

Multiple Choice

$\mathrm{.}4525$

$\mathrm{.}5243$

$\mathrm{.}5475$

$\mathrm{.}4978$

$\mathrm{.}4247$