bob was interested in this investment. after calling to make sure that the 100$ fee would be deducted after his money was doubled, he decided to join. However , after his service charge was deducted at the the end of four months his balance was exactly 0! How much money did he start out with?
+37170 He must have started with $50 ....when it DOUBLED to $100 and they deducted the fee ($100) , it would be ZERO.
