Question 1015575
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There are 8 people hosting a party. Three people are needed to stay and clean up after the party is over. How many ways can the clean-up crew be chosen?

(Hint: 8C3)
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You just have the answer: 8C3.


Do you know what is it?


It is the number of combinations 8 objects taken 3 at a time:


8C3 = {{{(8*7*6)/(1*2*3)}}} = 8*7 = 56.


Regarding the combinations, read the lesson <A HREF=http://www.algebra.com/algebra/homework/Permutations/Introduction-to-Combinations-.lesson>Introduction to Combinations</A> in this site.