a. Someone in the 36 percent tax bracket can earn 8 percent annually on her investments in a tax-exempt IRA account. What will be the value of a one-time $ 16,000 investment in 5 years? 10 years? 20 years? You may use Appendix C to answer the questions. Do not round intermediate calculations. Round your answers to the nearest dollar. in 5 years: $ in 10 years: $ in 20 years: $ b. Suppose the preceding 8 percent return is taxable rather than tax-deferred and the taxes are paid annually. What will be the after-tax value of her $16,000 investment after 5, 10, and 20 years? Do not round intermediate calculations. Round your answers to the nearest dollar. in 5 years: $ in 10 years: $ in 20 years: $