SOLUTION: Need help: Evaluate the expression. 22C1 A) 22 B) 23 C) 21 D) 1

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Question 202077: Need help:
Evaluate the expression.
22C1
A) 22
B) 23
C) 21
D) 1
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
It's helpful to remember that x C 1 = x for all natural numbers "x". So in this case, 22C1 = 22 which means that the answer is A) 22