SOLUTION: in how many ways can you select two people from a group of 9 people?

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Question 415340: in how many ways can you select two people from a group of 9 people?
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi

in how many ways can you select two people from a group of 9 people?

    9C2 ways             |nCx = n%21%2F%28x%21%28n-x%29%21%29

    9C2 = 9*8/2 = 36 ways