Number of people < (should be smaller than or equal to but I don't have that button on my keyboard) (100-7) / 15.50
103/15.50 = 6.64516...
You can't have .645 of a person, so you must round down. Therefore, she can bring 6 people including herself.
It is a very high probability. If you role two dice no matter what you will get 12 or less.
-1^3 - -1^2 +1= -1. ...........
- 3 - 8 = - 11
5 - 0 = 5
- 11 / 5 = - 2 . 2
