Roth individual retirement accounts, known as Roth IRA's, are permitted by the IRS to allow individuals to invest after-tax amounts without being taxed again on any of the capital gains. If an engineer invests the maximum allowable amount of $5, 500 now, and $5, 500 each year for the next 34 years, how much money will be held in the account immediately after the last deposit, if the account earns 7% per year? 4.4 An engineer decides to set aside money in a 529 Plan for his newborn's college education. He estimates that the child's needs will be $52,000 on her 18th, 19th, 20th, and 21th birthdays. If he plans to make uniform deposits starting 3 years from now and continue through year 17, what should be the size of each deposit, if the account earns interest at a rate of 6% per year