Answer:
factors of 125 are:
1, 5, 25, 125
I'm not sure what u mean..... if you want to find hcf of a value then there has to be two value example: hcf of 125 and 225
I think your asking how much the school will have left over. If so:
125 ( not including the tickets)
It depends on how many kids are coming to the dance in order to fully solve this problem.
You didn't word this properly so that what I got with what I had:)
If you have anymore questions, ask me them on my profile so I'll be sure to get them:)
I hope this helps:)