1. To help finance a major expansion, Castro Chemical Company sold a noncallable bond several years ago that now has 20 years to maturity. This bond has a 9.25% annual coupon, paid semiannually, sells at a price of $1,025, and has a par value of $1,000. If the firm's tax rate is 40%, what is the component cost of debt for use in the WACC calculation? Do not round your intermediate calculations.
2. What is the duration of bond quoted at $98.50, whose value falls to $95.91 if rates rise by 75 bps?