Suppose you are a manager for a certain company. You earn $50,000 per year and are in the 28% federal income tax bracket. Each year you contribute $4,500 tax free to your individual retirement account, IRA. The account earns 7% annual interest. In addition, the amount of tax that you save each year by making these "pre-tax" contributions is invested in a taxable aggressive growth mutual fund averaging 16%. (a) How much tax do you save (in $) each year by making the retirement fund contributions? $ (b) Using Table 12-1, much will the retirement fund be worth (in $) in 30 years? (Round your answer to the nearest cent.) $ (c) Although the income from this investment is taxable each year, using Table 12-1, how much will the "tax savings" fund be worth (in $) in 30 years? (Round your answer to the nearest cent.) $