Rearden Metal is evaluating a project that requires an investment of $150 million today and provides a single cash flow of $180 million for sure one year from now. Rearden decides to use 100% debt financing for this investment. The risk-free rate is 5% and Rearden's corporate tax rate is 21%. Assume that the investment is fully depreciated at the end of the year.

The WACC for this project is closest to?