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1. During the six hours the library was open on Sunday, the circulation desk checked out an average of 145 books per hour. How many books were checked out that day?
a. 640 books
b. 810 books
c. 840 books
d. 870 books​


Sagot :

Answer:

1. d

Step-by-step explanation:

145 books/hr × 6 hr = 870 books

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