What do you really mean..?
So, As Helen divides these pencils, she will divided among, herself, and also her other friends.
This would then signify that the expression would look like the following:

We really do not know how many pencils Helen had, so this is why <em>p </em>is in the equation.
We can start out simple, so here's some:
If you ever drew a sea saw as a child, or seen it, you probably had seen a part that looks like a triangular prism. It's somewhere in the structure.
Many building infrastructures have them. The roofs of many houses are pointed in some what of a triangle like shape so that rain water can roll off of them easier.
Hope these two help or at least spark some ideas!
Answer:
11.6 should be your answer!
Step-by-step explanation:
Im so sorry if its wrong!
Hope this helps!!
( > .< )