Question: This exercise can be solved using combinations even though the problem statement will not always include a form of the word combination or subset. An

This exercise can be solved using combinations even though the problem statement will not always include a form of the word "combination" or "subset."

An electronics store receives a shipment of

30

graphing calculators, including

5

that are defective. Four of the calculators are selected to be sent to a local high school. How many of these selections will contain no defective calculators?

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