math
posted by marie .
Solve by the method of choice
A book club offers a choice of 8 books from a list of 40. in how many ways can a member make a selection?

math 
Reiny
I will assume that the books are different
Number of ways to choose 8 books from 40
= C(8,4) = 8!/(4!4!) = 70
(order of choosing the books should not matter)
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