1) Find the amount of time needed for the sinking fund to reach the given accumulated amount. (Round your answer to two decimal places.)

$275 monthly at 5.9% to accumulate $25,000.

2) How much must you invest each month in a mutual fund yielding 11.5% compounded monthly to become a millionaire in 10 years? (Round your answer to the nearest cent.)

3) The Oseola McCarty Scholarship Fund at the University of Southern Mississippi was established by a $170,000 gift from an 87-year-old woman who had dropped out of sixth grade and worked for most of her life as a washerwoman. How much would she have had to save each week in a bank account earning 3.6% compounded weekly to have $170,000 after 75 years? (Round your answer to the nearest cent.)