$($Weighted average cost of$$ capital$)$Crypton Electronics has a capital structure consisting of $35$ percent common stock and $65$ percent debt. A debt issue of $$$$1000$ par$$ value, $6\mathrm{.}3$ percent bonds that mature in $15$ years and pay annual interest will sell for $$$$976.$ Common stock of the firm is currently selling for $$$$29\mathrm{.}75$ per share and the firm expects to pay a $$$$2\mathrm{.}18$ dividend next year. Dividends have grown at the rate of $4\mathrm{.}9$ percent per year and are expected to continue to do so for the foreseeable future. What is$$ Crypton's cost of capital where the$$ firm's tax rate is $30$percent$?$