Mr. Green has $15,000 to invest. He is undecided about putting the money into tax-exempt municipal bonds paying 3.5 percent annual interest or corporate bonds paying 4.75 percent annual interest. The two investments have the same risk. Required: a-1. Assume Mr. Green's marginal tax rate is 32 percent. What is his after-tax yield on the municipal bonds? a-2. What is his after-tax yield on the corporate bonds? a-3. Which investment should Mr. Green make? b-1. Assume Mr. Green's marginal tax rate is 12 percent. What is his after-tax yield on the municipal bonds? b-2. What is his after-tax yield on the corporate bonds? b-3. Which investment should Mr. Green make? Complete this question by entering your answers in the tabs below. Req A1 and A2 Req A3 Req B1 and B2 Req B3 a-1. Assume Mr. Green's marginal tax rate is 32 percent. What is his after-tax yield on the municipal bonds? a-2. What is his after-tax yield on the corporate bonds? (Report percentage answers rounded to two decimal places (for example, 0.3261 is 32.61%). Do not round intermediate calculations.) a-1 After-tax yield % a-2 After-tax yield % Show less