Answer:
Each student will have a maximum of 2 erasers. The other 9 would belong to the teacher.
Explanation:
55 (erasers) / 23 (students) = 2 9/23
2 (erasers) * 23 (Students) = 46
The remaining, leftover 9 belong to the teacher bec its what you stated in your question ^^
Hope I helped! ^^