Mary's Corp issued a 30year, 8% semiannual bond 3years ago. The bond currently sells for 93% of its face value. The book value of the debt issue is $50,000,000. In addition, the company has a second debt issue on the market, a zero coupon bond with 12 years left to maturity; the book value of this issue is $50,000,000 and bonds sell for 53% of par. the company's tax rate is 35%. What is the company's total book value of debt? total market value of debt? and what is your best estimate of aftertax cost of debt?