Q: Calculate the after-tax return of a(n) 7.16 percent, 20-year, A-rated corporate bond for an investor in the 10 percent marginal tax bracket. Compare this yield to a(n) 5.03 percent, 20 -year, A-rated, tax-exempt municipal bond, and explain which alternative is better. Repeat the calculations and comparison for an investor in the 35 percent marginal tax bracket.

A: The after-tax return of the 7.16%, ,20-year, A-rated corporate bond for an investor in the 10% marginal tax bracket is % what?