A library loans out 3 books every day for a week and no books are returned. The following equation is written to represent the situation:
(−3)⋅7=−21
Which of the following best explains the meaning of −21
in the equation?
Responses
A Books were loaned out for −21
days.Books were loaned out for negative 21 days.
B The library now has −21
books.The library now has negative 21 books.
C The change in the number of books at the library over the course of the week was −21
.The change in the number of books at the library over the course of the week was negative 21.
D The number of books loaned per day was −21
.