Answer:
My answer is 38 teachers.
Step-by-step explanation:
The side is how many classes there are for each group. The first column has 1 class. The second has 3. The third has 12. The fourth has 15. And the last one has 7. When i add them up i get the total amount of classes which is equal to the amount of teachers.
1+3+12+15+7=38 teachers
