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Chevron Corporation has 1.93 billions shares of common stock outstanding. The book value is $70 per share and the market price is $170 per share. T-bill yield is 4.5%, and the market risk premium is assumed to be 5.5%. The stock beta is 1.12 . The corporate tax rate is 35%. The firm has newly issued a bond with a market value of $38 billion and a yield to maturity of 6.2%. What's the firm's WACC? 9.97% 10.25% 8.69% 12.35%