pls help this is question #5 and I don't understand it .

Question 5 Not yet answered Marked out of 12.00 Remove flag Question #6 a. An investor is considering two bonds. One is a corporate bond yielding 13% and is currently selling at par. The marginal tax rate is 30%. The other is a municipal bond with a coupon rate of 9.50%. Which should the investor choose? (6 points). b. Holly Star's stock price is currently $30.00. It is expected to pay a dividend of $0.90 a share in the current year. Stock analysts predict its price one year from now to be $25.50. Calculate the expected return. (6 points)