SOLUTION: There are ten toppings available to make an ice cream sundae. How many ways can Max choose two? And is it permutation or combination?

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Question 1176341: There are ten toppings available to make an ice cream sundae. How many ways can Max choose two? And is it permutation or combination?
Answer by CubeyThePenguin(3113) About Me  (Show Source):
You can put this solution on YOUR website!
Order doesn't matter, so this is a combination.

10 choose 2 = (10 * 9)/(2 * 1) = 45