12 chaperones to 210 students....12/210 reduces to 2/35
18/300 reduces to 3/50
20/350 reduces to 2/35
8/160 reduces to 1/20
14/260 reduces to 7/130
so the same ratio would be Jefferson High School
Can you put the question in English?
Answer:
160
Step-by-step explanation:
X²+7x-30
=x²+10x-3x-30
=x(x+10)-3(x+10)
=(x+10)(x-3)
Hope my answer helped u :)