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Mr. mckay teaches about 100 students in his senior english classes in a large high school. if his students match the national norms for twelfth​ graders, how many of his students probably used​ marijuana, alcohol, or other illicit drugs in the past 30​ days?
a. 25
b. 15
c. 20
d. 10

Respuesta :

indiaaaaa
I think it is C) 20. I’m not sure though, I just remember hearing that statistic in my health class last year.
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