Hello, need help with the part in yellow bellow. I appreciate it!

Problem 13-4 Calculating Cost of Debt Jiminy's Cricket Farm issued a 30-year, 5.6 percent semiannual bond 2 years ago. The bond currently sells for 107 percent of its face value. The book value of the debt issue is \$55 million. In addition, the company has a second debt issue on the market, a zero coupon bond with 15 years left to maturity; the book value of this issue is $50 million, and the bonds sell for 51 percent of par. The company's tax rate is 21 percent. a. What is the company's total book value of debt? (Do not round intermediate calculations and enter your answer in dollars, not millions of dollars, e.g., 1,234,567. b. What is the company's total market value of debt? (Do not round intermediate calculations and enter your answer in dollars, not millions of dollars, e.g., 1,234,567. c. What is your best estimate of 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.) Problem 13-4 Calculating Cost of Debt Jiminy's Cricket Farm issued a 30-year, 5.6 percent semiannual bond 2 years ago. The bond currently sells for 107 percent of its face value. The book value of the debt issue is \$55 million. In addition, the company has a second debt issue on the market, a zero coupon bond with 15 years left to maturity; the book value of this issue is $50 million, and the bonds sell for 51 percent of par. The company's tax rate is 21 percent. a. What is the company's total book value of debt? (Do not round intermediate calculations and enter your answer in dollars, not millions of dollars, e.g., 1,234,567. b. What is the company's total market value of debt? (Do not round intermediate calculations and enter your answer in dollars, not millions of dollars, e.g., 1,234,567. c. What is your best estimate of 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.)