Sunrise, Incorporated, is trying to determine its cost of debt. The firm has a debt issue outstanding with 11 years to maturity that is quoted at 108 percent of face value. The issue makes semlannual payments and has an embedded cost of 6.8 percent annually. a. What is the company's pretax cost of debt? Note: Do not round Intermedlate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16. b. If the tax rate is 22 percent, whot is the aftertax cost of debt? Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.9, 32.16