There are seven people online and each person uses either a blue, black, or red pen to write while working. How many possible combinations c

Question

There are seven people online and each person uses either a blue, black, or red pen to write while working. How many possible combinations can be made?

A. 49

B. 28

C. 21

D. 10

A S A P!! I DONT WANT MY DAD YELLING AT ME FOR THIS ;^;

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Thành Công 4 months 2021-07-26T01:49:44+00:00 1 Answers 10 views 0

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    0
    2021-07-26T01:50:57+00:00

    Answer:

    21 is the answer for this question may be

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