Problem 13-2 WACC (LO1) Here is some information about Stokenchurch Inc.: Beta of common stock 1.8 Treasury bill rate = 4%. Market risk premium = 8.1% Yield to maturity on long-term debt = 10% Book value of equity = $500 million Market value of equity = $1,000 million Long-term debt outstanding Corporate tax rate = 21% $1,000 million What is the company's WACC? (Do not round intermediate calculations. Enter your answer as a percent rounded to 2 decimal places.) WACC %