Answer:
The Ruler
Explanation:
Since the ruler is the largest part to any pencil case, other than the pencil case itself, it must rule over it's pencil subjects, therefore making it the leader of the pencil case.
If you wanted answers to the problems on the page, the answers are the following
- -30
- -14.33333333333333333333333333333
- -7
- -10
- -7
- 49
- -9
- 5
Hope this helps