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5. The current stock price of firm A is $50. The dividend of the stock will grow at 8% annually. Firm A has just paid a dividend of $1.852. Firm A's marginal tax rte is 40%. What's the cost of equity of firm A? 6. Suppose Firm B has its target capital structure as follows. Firm B has a tax rate of 40% Instrument debt preferred Stock common equity Market Value (Smil.) Cost of capital 45 10% 10.3% 13.4% 53 What's the WACC (Weighted Average Cost of Capital)