3. 10 years ago you deposited $2500 into a high interest savings account that will always earns 3.55% interest p.a. and that interest compounded monthly. Starting today you want to open a completely separate investment. You figure that at the end of every bi-weekly period you can make $100 deposits until you are ready to retire in 15 years. The annuity pays interest at a rate of 1.28% p.a. compound semi-annually. a) How much total money will you have on the first day of your retirement? b) How much interest did you earn over the life of your investments