Posted by Eleanor on Thursday, February 19, 2009 at 6:27pm.
Assume that the set S has 10 elements.
How many subsets of S have at most 4 elements?
This question is from the section in my book called "Counting Partitions: Combinations." I would greatly appreciate any help! Thanks!

Combinations  Math  Writeacher, Thursday, February 19, 2009 at 6:31pm
assistance needed
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