O's Corporation usesdebt, preferredstock, and common stock to raise capital. Thefirm's capital structure targets the followingproportions: debt, 44%; preferredstock, 15%; and commonstock, 41%. If the cost of debt is 5.7%, preferred stock costs 8.6%, and common stock costs 11.3%, what isO's weighted average cost of capital(WACC)?

Weighted average cost of capital(WACC) is _______%?

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