Paul Altero has gone public with his Bubbakoos Buritos restaurant chain.His current capital structure is as follows: 10,000 shares of common stock at $20 per share at a cost of 14%; 3,200 shares of preferred stock at $40 per share at a cost of 11%; and 600 bonds at current market value of $980 each at a before-tax cost of 9%.If his corporate tax rate is 25%, what should be the company's required rate of return?