Since there are 4 homeless shelters and each shelter received 18 books, the total number of books is 4 * 18 = <<4*18=72>>72.
Since there are 4 people collecting the books, the total number of books collected altogether is 72 * 4 = <<72*4=288>>288.
Answer: 288
Micaela and three of her friends volunteered to collect children’s books for the city’s homeless shelters. There are 4 homeless shelters in the area, and each shelter received 18 books. How many books did Micaela and her three friends collect altogether?
1. 27
2. 4.5
3. 18
4. 72
1 answer