Terrance has $100.00 that he can invest in a saving account. his bank is willing to pay interest into his account at a rate of 0.04. how long will terrance need to leave the money in the account if he wants to earn $100.00 in interest, doubling his money? use formula t=i/pr

Jody bought 20 shares of amazon at the close price of $121.00. she bought 20 more shares a year later at the price of $127.00. two years later, she sold all of her shares at the price of $133.00. her broker charges $50 for each transaction. after all of these transactions, how much money did jody make?