Hello tutors! I am looking for some help with these finance questions that I am sooo stuck on. I would really really appreciate your help on both thank you so so much! Have a good day!

Problem 9-1 After-Tax Cost of Debt Calculate the after-tax cost of debt under each of the following conditions: a. I'd of 14%, tax rate of 0%. Round your answer to two decimal places. .14 / b. rd of 14%, tax rate of 25%. Round your answer to two decimal places. 1.12 % c. rd of 14%, tax rate of 40%. Round your answer to two decimal places. Problem 9-6 Cost of Equity: CAPM Booher Book Stores has a beta of 1.0. The yield on a 3-month T-bill is 3.5% and the yield on a 10-year T-bond is 6%. The market risk premium is 6.5%, and the return on an average stock in the market last year was 12.5%. What is the estimated cost of common equity using the CAPM? Round your answer to two decimal places. 6.6 %