Given the specific cost of each source of financing as follows: Pre-tax Cost of debt =8.5% Post-tax Cost of debt=5.1% Cost of preferred stock=8.44% Cost of new common stock=13.78% Cost of common stock-Cost of retained earnings=14.97% And the following weights: Source of capital Long term debt Preferred stock Common stock equity Total Weight 30% 20 50 100% 1) Calculate the single break point associated with the firm's financial situation. (Hint: This point results from exhaustion of the firm's retained earnings.) 2) Calculate the WACC associated with the total new financing below the break point calculated in part (1). 3) Calculate the WACC associated with the total new financing above the break point calculated in part (1).