Please solve the before tax and after tax costs of debt for question 3. No extra information needed. thank you

a. Find the net proceeds trons the swe of the bond, Nd b. Calculale the teefore-tax and after tax costs of debt. a. The net proceeds feom the sale of the bond, Nd; is $960. (Round to the nearest dollar.) b. The belore-tax cost of deet is 4. (Round to two decimal places.)