I got $18,227 for part a, please let me know if this is correct.

Thank you for your help.

Komiko Tanaka invests $12,000 in LymaBean, Incorporated Lymabean does not pay any dividends. Komiko projects that her investment will generate a 10 percent before-tax rate of return. She plans to invest for the long term. a. How much cash will Komiko retain, after-taxes, if she holds the investment for five years and then she sells it when the long-term capital gains rate is 15 percent? (Do not round intermediate calculations. Round your final answer to the nearest whole dollar amount.) Cash retained $ 18,227 b. What is Komiko's after-tax rate of return on her investment in part (a)? (Do not round intermediate calculations. Round your percentage answer to 2 decimal places.) After-tax rate of return % c. How much cash will Komiko retain, after taxes, if she holds the investment for five years and then she sells when the long-term capital gains rate is 25 percent? (Do not round intermediate calculations. Round your final answer to the nearest whole dollar amount.) Cash retained d. What is Komiko's after-tax rate of return on her investment in part (c)? (Do not round intermediate calculations. Round your percentage answer to 2 decimal places.) After-tax rate of return % e. How much cash will Komiko retain, after taxes, if she holds the investment for 15 years and then she sells when the long-term capital gains rate is 15 percent? (Do not round intermediate calculations. Round your final answer to the nearest whole dollar amount.) Cash retained f. What is Komiko's after-tax rate of return on her investment in part (e)? (Do not round intermediate calculations. Round your percentage answer to 2 decimal places.) After-tax rate of return %