ABC Inc.$\text{'}$s capital structure is $55\%$ debt, $20\%$ preferred, and $30\%$ common equity, and its tax rate is $25\%.$ For financing, $($a$)$ ABC sold a non$-$callable bond several years ago that now has $15$ years to maturity with $8\%$ annual coupon, paid semiannually, at a price of $$1,055,$ and a par value of $$1,000.($b$)$ ABC sold a perpetual preferred stock for $$95\mathrm{.}50$ per share, with a $$7\mathrm{.}50$ annual dividend and a flotation cost of $3\mathrm{.}00\%$ of the price. $($c$)$ ABC also has beta $=1\mathrm{.}2,$ risk free rate of return rRF $=6\mathrm{.}00\%$; market risk premium RPM $=7\mathrm{.}00\%$;

The question is: What is the company's WACC?