Answer:
4
Step-by-step explanation:
you take the two and add it the the two
The area is 28cm.
Hope this answer helps!!!
It´s <span> x = 2
I´m positive that is right </span>
4+2x = x (x = student in smaller group)
4 + 2x + x = 28 (total # of students)
4+ 3x = 28
3x = 24
x = 8
8 students in the smaller group
4 + 2(8) = 20 students in the larger group
