Ying Import has several bond issues outstanding, each making semiannual interest payments. The bonds are listed in the table below. Maturity Face Value 4 years$23,000,000 43,000,000 48,000,000 Coupon RatePrice Quote Bond 2 4 8.80% 6.50 8.50 9.00 105.3 95.1 104.1 106.0 7 years 14.5 years 24 years If the corporate tax rate is 40 percent, what is the aftertax cost of the company's deb? (Do not round intermediate calculations and ent t decimal places, e.g., 32.16.) Aftertax cost of debt