The total weight of laura's new pencil is 112 grams. one pencil rolls off the scale. now the scale reads 105 grams. what is the total weight of 7 new pencils?

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?