Find the error in the student’s calculation.

the student should have simplified the exponent first.
the student did not subtract 3 and 8 correctly.
the student should not have multiplied 8 and -2.
the student did not make an error.

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?