Question 30 (3 points) Rumper Role recently sold a 15 year $1,000 face value bond at a discount for $700 that net the firm $692 after flotation costs. The low coupon bond has a 6% coupon with interest paid semiannually. If Rumper Role has a marginal tax rate of 40 percent what is its after-tax cost of debt for these bonds? 60% 9.2% 10.0% 7.8%