The answer is a facilitator.
A facilitator is a person who facilitates discussions. He/she plays a neutral in any discussion. The facilitator guides the group to attain their objective. He/She can use different tools to help the group achieve their goals.
Some of the many possible answers can be..
3.3
2.2
0.5
2(x+7)^2=0 would be your answer :)
Answer:
<u><em>Good luck!
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0..