In a certain Algebra 2 class of 30 students, 16 of them play basketball and 8 of them play baseball. There are 12 students who play neither sport. What is the probability
that a student chosen randomly from the class plays both basketball and baseball?

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?