What number should go into the blank so that the two expressions are equivalent to each other? (Use only the digits 0 - 9 to write the number.) p + p + 20 + p + p + p + 7 + p = __(2p + 9)

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?