how can I solve this?

eBook Palencia Paints Corporation has a target capital structure of 45% debt and 55% common equity, with no preferred stock. Its before-tax cost of debt is 8%, and its marginal tax rate is 25%. The current stock price is Po - $20.00. The last dividend was Do - $2.50, and it is expected to grow at a 5% constant rate. What is its cost of common equity and its WACC? Do not round intermediate calculations. Round your answers to two decimal places. WACC =