Finance & Accounting Math ( 3 questions) in attached document

1. Lisa Mariehas saved $750000.00.If she withdraws $12000.00 at the beginning of every month and interest is 12% compounded monthly, what is the size of the last withdrawal? 2. What sum of money must be deposited in a trust fund to provide a scholarship of $1520.00, payable at the beginning of each 3 months, if interest is 6.72% compounded quarterly? 3. An investment in a lease offers returns of $3713 per month due at the beginning of each month for 4.5 years. What investment is justified if the returns are deferred for two years and the interest required is 6.12% compounded monthly