Michael P. answered 03/02/18
Tutor
New to Wyzant
Quick Answers to Math, Chemistry, and Physics Problems
First subtract the 5 books for the last shelf from total books
68 - 5 = 63 books
Then divide the remaining books by the 9 shelves:
63 book/9 shelves = 7 books/shelf
with 5 books on last shelf