Find the midpoint between the points (5, 8) and (2, 7) on the coordinate plane.
a) (7/2, 15/2)
b) (7/2, 15)
c) (7, 15)
d) (6, 5)

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?