Question: Now suppose that you decide to disagree with your mother in Exercise and say that the order of the scoops does matter. How many different possible two-scoop cones are there?
Exercise: In the local ice cream shop, there are 10 different flavors. How many different two-scoop cones are there? (Following your mother's rule that it all goes to the same stomach, a cone with a vanilla scoop on top of a chocolate scoop is considered the same as a cone with a a chocolate scoop on top of a vanilla scoop.)