RDA Mines Inc. operates an unobtanium mine on the planet Alberta which is a satellite in the Alpha Centauri system near Pandora. The people of Alberta have instituted a corporate tax at the rate of $32\%.$ RDA's weighted average cost of capital is $13\%.$ RDA has $40\%$ debt in its capital structure$($debt$-$to$-$equity is $0\mathrm{.}67)$ and the$$ before$-$tax cost of debt is $9\%.$ What is the cost of equity for RDA given its$$ WACC? $\_\_\_\_\_\_\%.($Round to two decimal$$ places.$)$