There are 321 visitors at the library Each library table seats 12 people. How
many tables are needed to seat all of
the visitors?
A) 20
B) 30
C) 27
D) 9

Therefore, 27 tables are needed to seat all of the visitors.

Step-by-step explanation:

In order to solve this question, we must divide 321 by 12, since there are 321 visitors, and each table seats 12 people.

321 ÷ 12 = 27 when rounded to the nearest whole number.

Therefore, 27 tables are needed to seat all of the visitors.

Hope this helps! :D

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step-by-step explanati∵∵∴∴on: