Shi Importers balance sheet shows $300 million in debt, $50 million in preferred stock, and $250 million in total common equity. Shis tax rate is 40%, r_d= 6%, r_ps = 5.8%, and r_s = 12%. If Shi has a target capital structure of 30% debt, 5% preferred stock, and 65% common stock, what is its WACC?