Rowan Inc. has 60,000 bonds outstanding, and its bonds are priced at par, with a coupon rate of 5%. The current market price of the company's stocks is $45 per share. It is twice as risky as an average stock in the market. The 3-month US Treasury Bill rate is 3.5% and the S\&P 1500 Index return is 11.25%. Rowan Inc. finances 30% of its assets with equity, and the remaining portion with debt. Assuming that the tax rate is 35%, what is the weighted average cost of capital of Rowan Inc? 5.00% 6.13% 7.98% 13.45% 19.00%