You were hired as a consultant to Nem-adozo Company, whose target capital structure is 40% debt, 15% preferred, and 45% common equity. The before-tax cost of debt is 6.00%, and the tax rate is 25%; the cost of preferred is 3.50%, and the cost of retained earnings is 4.75%. The firm will not be issuing any new stock. What is its WACC? Show work. 4 decimals please.