Designers is a business that now consists of equity only, with a cost of capital to be equal to14%. The business has to choose to borrow money and can do so at 8.5% interest rate. Ignore taxation. a) What is the cost of equity of the enterprise at this time? b) What will be the cost of equity of the enterprise, if the enterprise changes its capital structure, so that the ratio of debt to equity is 0.7? c) What would be the weighted average cost of capital (WACC) of the enterprise if the debt-to-equity ratio is 0.7?