[Question]: Mitchell is trying to chew as many pieces of gum at once as he can. He has 8 packets of gum, There are 7 pieces in each. If he chews all the gum except for 2 pieces, how many pieces does he chew at once?
[Answer]: The packets have 56 pieces in total because 8 x 7 = 56. He chews 54 pieces because 56 - 2 = 54.
So the answer is 54.

[Question]: Jenny has a tummy ache. Her brother Mike says that it is because Jenny ate 5 more than thrice the number of chocolate squares that he ate. If Mike ate 20 chocolate squares, how many did Jenny eat?
[Answer]: Thrice the number of chocolate squares that Mike ate is 20 squares * 3 = 60 squares. Jenny therefore ate 60 squares + 5 squares = 65 chocolate squares.
So the answer is 65.

[Question]: Stella collects stamps. She counted 50 pages in her collector's album. There are 5 rows of 30 stamps in each of the first 10 pages of her album. The rest of the pages each have 50 stamps. How many stamps are in Stella's album?
[Answer]:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
There are 30 x 5 = 150 stamps on each of the first 10 pages. So she has a total of 150 x 10 = 1500 stamps in the first 10 pages. There are 50 - 10 = 40 pages that have 50 stamps each. There is a total of 40 x 50 = 2000 stamps in the remaining 40 pages. Therefore, Stella has 2000 + 1500 = 3500 stamps in her album.
So the answer is 3500.