Answer:
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First, find the number of females in the class. 
Then, just write the ratio. 
Answer:
B
Step-by-step explanation:
1/6*1/6*1/6=1/216
I HOPE THIS HELPS!
Answer: C
Step-by-step explanation:
y2-y1/x2-x1
-9+7/5-6 = 2