Answer:
Refer below.
Step-by-step explanation:
The principal will have to increase the number of teachers next year.
We found out that the seventh grade enrollment was 120% of the number of eight graders, which is greater than 110%.
N=12
1/4n = 10-7
1/4n = 3
N = 3x4 = 12
There is 350 boys the the ratio is 2 (or 2 1/2) boys for every 1 girl
