Ask your own question, for FREE!
Mathematics
OpenStudy (anonymous):

The Book of the Month club offers a choice of 3 books from a selection of 40 books. How many different selections can members order?

OpenStudy (anonymous):

read through this http://www.mathsisfun.com/combinatorics/combinations-permutations.html

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!