Valley Equipment has three forms of financing: Bonds, Preferred Stock, and Common Stock. It weights the financing 40% bonds, 5% preferred stock and 55% common stock. If its after- tax cost of debt is 6%, Its cost of preferred stock is 7%, and cost of common stock 10%, what is Valley Equipment's overall weighted average cost of capital? Multiple Choice 7.90 percent O O 8.25 percent a 7.95 percent o 0 8.10 percent O 7,80 percent