The price of a stock decreased by $0.60 one week decrease $0.10 the next week and decrease another $0.20 the following week what is the average change in the price of stock of the three weeks? A. -270 cents per week
B.-90 cents per week
C. -87 cents per week
D. -30 cents per week

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?