How many different pizzas can be made with 5 topping to chose from?

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asked by dillard
  1. What you are asking is ,
    How many subsets are there with 5 elements.
    which would be 2^5 or 32
    But that includes the case of no toppings (the null set)
    It is up to you to decide if that is a possibility,
    if not, then there would be 31 different pizzas

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    posted by Reiny

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