Answer:
There would be at least 6 adults
Step-by-step explanation:
7 students-1 adult
2 students-0 adults
2 or 4
Since I do not quite understand what you mean by X X, I could think of two answers. If you are doing 5 times X=20, then X = 4, but if you are trying to do 5 times x times x, then x=2.
2.70