Break apart ones to make a ten then add and write a sum 23+9

Describe the relationship between the angles of similar triangles and the sides of similar triangles

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?

Ireally don't understand this, i'm really an idiot but i want to know how to figure this out. !