laurie was scuba diving. Each time she dove 5 feet deeper, she would stop. She checked her instruments 3 times and was at her maximum depth of 60 feet. What expression best represents the maximum depth.

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?