Please find attached a problem I would like assistance with.

Thanks,

WilliMae

A taxpayer can invest $5,000 in a common stock that pays no dividends but appreciates at a rate of 8%. The taxpayer's tax rate is 30%. He plans to sell the stock after 30 years. a. Find the after-tax accumulation and the annualized after-tax rate of return for this investment. b. What would have been the annualized after-tax rate of return on the stock if there were a special tax rate of 20% on capital gains