Question

Presley is organizing the school book sale. Each stall will have 40 books on the shelf and 2 boxes of books with b books inside. Presley also has 200 books in inventory to refill the shelves as books sell. This situation can be written as the following expression:
40s + (2b)s + 200
How many books should Presley have ready if she plans to open 8 stalls and have 12 books in each box?

Answer 1

Presley should prepare 712 books for the school book sale.


1 stall = 40 books on the shelf and 2 boxes of books

8 stalls = 40(8) + 2(12)(8)
            = 320 + 24(8)
            = 320 + 192
            = 512  books in the stalls

books in the stalls      = 512
books in inventory     = 200
total number of books   712