The following information comes from the Galaxy Construction balance sheet. The value of common stock is $10,000, retained earnings equals $7,000, total common equity equals $17,000, preferred stock has a value of $3,000, and long-term debt totals $15,000. If the cost of debt is 8.00%, preferred stock has a cost of 10.00%, common stock has a cost of 12.00%, and the firm has a corporate tax rate of 30%, calculate the firm's WACC adjusted for taxes.