Question

Scenario 3: Ms. Whiteleather's bookshelf has a set of 16 books
on it. Each book is 1-inches wide. If the books take the full
length of the shelf with no space left over, how long is the
shelf?

Answer 1

16, if there’s no space left and each book is 1 inch wide any number times one is itself, 16(books)x1(inches)=16