The stock is currently selling for $17.75 per share, and its noncallable $3,319.97 par value, 20-year, 1.70% bonds with semiannual payments are selling for $881.00. the beta is 1.29, the yield on a 6-month treasury bill is 3.50%, and the yield on a 20-year treasury bond is 5.50%. the required return on the stock market is 11.50%, but the market has had an average annual return of 14.50% during the past 5 years. the firm's tax rate is 40%.refer to exhibit 10.1. what is the best estimate of the after-tax cost of debt? a. 6.07%

Secured loans are protected by collateral security. examples: title loans where the borrower uses the car title as collateral security interest rates are lower and repayments are longer therefore risk is low as a collateral security is given as guarantee to the bank in case of failure to pay the loanunsecured loans are not protected by collateral security but it is given on the creditworthiness of the borrower, trusting that she/he will pay on time. examples; payday loans is a short term loan where the borrower lends money from the bank and pays is back when the borrower receives his/her wages.interest rates are high and repayments are shorter. but the risk is high as no collateral security is given as a guarantee to the bank for payment of the loan