One of the advantages of borrowing is that interest is deductible for income tax purposes. a. If a company pays 8 percent interest to borrow $500,000, but is in an income tax bracket that requires it to pay 40 percent income tax, what is the actual net-of-tax interest cost that the company incurs? (Omit the "$" sign in your response.) Actual net-of-tax interest cost $ b. What is the effective interest rate that is paid by the company? (Round your answer to 1 decimal place. Omit the "%" sign in your response.) Effective interest rate