Question

Eric has been donating books he no longer needs to his local library. After 3 months of donating, he had 157 books left in his room. After 8 months of donating, he had 102 books left in his room. How many books per month did Eric donate on average between months 3 and 8? (2 points)
Answer
-31 books per month
-18 books per month
-11 books per month
-7 books per month

Answer 1

3 Months to 8 Months is a 5 Month Span. 8-3=5
157 books to 102 books is a 55 book difference. 157-102 = 55

If he gave out 55 books in 5 Months, this is represented by 55/5

Answer 2

You got this!

Answer 3

so the answer is 11?

Answer 4

Absolutely.

Answer 5

thanks again :)