What is the percent markup of $7.50

2f(x)= x+3 if 4 < x < 8 2x if x 28 2

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?

Mathematician needed for homework plz 20 points