please answer with work

Thought - Objective 2 - Savings account, gold bullion, muni An investor has $1,000 to invest. He can invest in a savings account that yields 10%, gold bullion that appreciates at a rate of 8%, or a tax-free municipal bond that yields 6%. The investor's tax rate on ordinary income is 28%, and he plans to liquidate the investment in 10 years. Note - The TaxTools spreadsheet Unit_3. XLS can be used to solve this problem. To calculate the future value of the gold bullion and the muni, you will need to make clever use of the spreadsheet file. a. Find the after-tax accumulation for each investment. b. Find the after-tax accumulation for each investment assuming the holding period is 15 years. c. Find the after-tax accumulation for each investment assuming the holding period is 20 years. d. Using TaxTools Spreadsheet Unit_3.xls, on your own, change one or more values of this problem. Repeat the above parts of this problem. In particular, increase t. Thought - Objective 2 - Savings account, gold bullion, muni An investor has $1,000 to invest. He can invest in a savings account that yields 10%, gold bullion that appreciates at a rate of 8%, or a tax-free municipal bond that yields 6%. The investor's tax rate on ordinary income is 28%, and he plans to liquidate the investment in 10 years. Note - The TaxTools spreadsheet Unit_3. XLS can be used to solve this problem. To calculate the future value of the gold bullion and the muni, you will need to make clever use of the spreadsheet file. a. Find the after-tax accumulation for each investment. b. Find the after-tax accumulation for each investment assuming the holding period is 15 years. c. Find the after-tax accumulation for each investment assuming the holding period is 20 years. d. Using TaxTools Spreadsheet Unit_3.xls, on your own, change one or more values of this problem. Repeat the above parts of this problem. In particular, increase t