Question 962244
Baskin-Robbins advertises that it has 31 flavors of ice cream.

a.) How many different double scoop cones can be made? 
(Assume that the order of the scoops matters)
31*30
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b.) how many different triple-scoop cones can be made?
31*30*29 (if order matters)
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c.) How many different double-scoop cones can be made if order doesn't matter?
31*30/2