The is the interest rate that a firm pays on any new debt financing. Three Waters Company (TWC) can borrow funds at an interest rate of 7.30% for a period of eight years. Its marginal federal-plus-state tax rate is 45%. TWC's after-tax cost of debt is _____ (rounded to two decimal places). At the present time, Three Waters Company (TWC) has 10-year noncallable bonds with a face value of $1,000 that are outstanding. These bonds have a current market price of $1, 092.79 per bond, carry a coupon rate of 11%, and distribute annual coupon payments. The company incurs a federal-plus-state tax rate of 45%. If TWC wants to issue new debt, what would be a reasonable estimate for its after-tax cost of debt (rounded to two decimal places)? 6.03% 5.24% 4.19% 4.72%