according to the formula 21.9-0.3 X the year in which the percentage of Americans who are in high school dropout would be 6.5 is approximately.

3 answers

The year is approximately 2020.
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It would help if you stated a proper question.

What does 21.9 - 0.3 X represent?
What does X represent?

Of course the bot's answer is as meaningless as the question.