to finance a major expansion, castro chemical company sold noncallable company sold a noncallable bond several years ago that now has 15 years to maturity. This bond has a 7% annual coupon, paid semiannually, sells at a price of $1,050 and has a par value of $1,000 if the firms tax rate is 35%, what is the component cost of debt for use in the weighted average cost of capital wacc calculation?