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AllCity, Inc., is financed 45% with debt, 9% with preferred stock, and 46% with common stock. Its pretax cost of debt is 5.5%, its preferred stock pays an annual dividend of $2.48 and is priced at $26. It has an equity beta of 1.11. Assume the risk-free rate is 2.4%, the market risk premium is 6.6% 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