Please answer the following

1a. What is the break-even tax rate between a taxable corporate bond yielding 12.8 percent and a comparable nontaxable municipal bond yielding 6.5 percent?

a. 0.49

b. 0.39

c. 0.45

d. 0.34

e. 0.23

1b. A bond has a rate of return of 18.7 percent. The real rate of return is 11.8 percent. What is the inflation rate?

a. 5.85 percent

b. 6.17 percent

c. 4.74 percent

d. 4.00 percent

e. 7.34 percent