Mathematics, 04.06.2020 20:58, kekoanabor19

In 2015, there were about 22 million teenagers (aged 13-17) in the United States. They each sent an average per month. About how many messages did all of teenagers in the United States send each month? Express your answer using scientific notation

In 2015, there were about 22 million teenagers (aged 13-17) in the United States. They each sent an

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In 2015, there were about 22 million teenagers (aged 13-17) in the United States. They each sent an...