Titan Mining Corporation has $9\mathrm{.}3$ million shares of common stock outstanding and $260,0006\mathrm{.}8$ percent semiannual bonds outstanding, par value $$1,000$ each. The common stock currently sells for $$34$ per share and has a beta of $1\mathrm{.}20,$ and the bonds have $20$ years to maturity and sell for $104$ percent of par. The market risk premium is $7$ percent, T$-$bills are yielding $3\mathrm{.}5$ percent, and Titan Mining's tax rate is $35$ percent.

Please solve cost of debt in details