13. Calculating the WACC [LO3] In Problem 12 , suppose the most recent dividend was $3.25 and the dividend growth rate is 5 percent. Assume that the overall cost of debt is the weighted average of that implied by the two outstanding debt issues. Both bonds make semiannual payments. The tax rate is 21 percent. What is the company's WACC? 14. WACC [LO3] Starset, Inc., has a target debt-equity ratio of 85. Its WACC is 9.1 percent, and the tax rate is 23 percent. A. If the company's cost of equity is 14 percent, what is its pretax cost of debt? b. If instead you know that the aftertax cost of debt is 6.5 percent, what is the cost of equity