need help

AllCity, Inc., is financed 44% with debt, 15% with preferred stock, and 41% with common stock. Its pretax cost of debt is 6%, its preferred stock pays an annual dividend of $2.51 and is priced at $30. It has an equity beta of 1.14. Assume the risk-free rate is 2.3%, the market risk premium is 7.1% and AllCity's tax rate is 25%. What is its after-tax WACC? Note: Assume that the firm will always be able to utilize its full interest tax shield