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(WACC) Margo Corporation is a major producer of lawn care products. Its stock currently sells for $12 per share; there are 10.5 million shares outstanding. It has debt with a book value of$400 million. Margo bonds yield 7% and trade at 100% of face value. Bonds mature in 10 years. The risk-free rate is 8%, the market risk premium is 9% and Margo has a beta equal to 0.7. The tax rate is 21%. The WACC is %