A firm's balance sheet shows $900 million in shareholder's equity and $690 million in debt. The debt has an average yield to maturity of 6.7%. The firm also has $100 million in cash and short-term investments that is not required for business operations. The required return on the firm's equity is 14.0%, the current share price is $31.00, and it has 57 million shares outstanding. The corporate tax rate is 22%. What is this firms WACC?