All city Inc. is finaned 40% with debt, 10% with preffered stock, and 50% with common stock. its pretax cost of debt is 6%, its preffered stock pays an annual dividend of $2.50 and is priced at $30. it has an equity beta of 1.1. assume the risk free rate is 2%, the market free premium is 7% and allcity's tax rate is 35%. what is its after tax WACC?