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3 years ago

9. Jackie invited 17 people to

Mathematics

1 answer:

daser333 [38]3 years ago

4 0

Answer:

Step-by-step explanation:

17 - 8 = 9 people came

The number of presents brought is 3×9 = 27.

Jackie got 27 presents.

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Step-by-step explanation:

When the order of selecting r individuals out of n individual , we use permutations.

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