Johnson Industries finances its projects with $40\%$ debt, $10\%$ preferred stock, and $50\%$ common stock.

$1)$ The company can issue bonds at a yield$-$to$-$maturity of $8\mathrm{.}4\%.$

$2)$ The cost of preferred stock is $9\%.$

$3)$ The risk$-$free rate is $6\mathrm{.}57\%.$

$4)$ The market risk premium is $5\%.$

$5)$ Johnson Industries' beta is equal to $1\mathrm{.}3.$

$6)$ The company's tax rate is $30\%.$

What is the company's WACC? $($Want an equation or may be Excel with an answer $9\mathrm{.}79\%)$