Company xyz is financed by four types of capital, i.e., debt, preferred stock, internal and external equity financing. The financing rates (and respective weights) are as follows: Debt: 3.25% (weight = 17%) Preferred stocks: 7.35% (weight = 18%) Internal equity:7.55% (weight = 35%) External equity: 9.05% (weight = 30%) Based on this information, the weighted average cost of capital is: