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posted by Ben on Monday, May 7, 2012 at 7:52pm.

You run pizza shop and have 8 different toppings that a customer can order. The customer can order any combination of topping including none but they cannot have double of any toppings. How many different pizza combinations can be ordered?

This becomes a question of the number of subsets with 8 elements. number of subsets = 2^8 or 256 Notice that this would include the nullset, correponing with "no items" and the the set of all elements, your "loaded pizza"

Thank you!

welcome

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