Jiminy's Cricket Farm issued a bond with 25 years to maturity and a semiannual coupon rate of 6 percent 2 years ago. The bond currently sells for 107 percent of its face value. The company's tax rate is 21 percent. a. What is the pretax cost of debt? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. What is the aftertax cost of debt? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.)