C. The way the sample was chosen may overrepresent or underrepresent students taking certain language classes.
The samples he chose may not be a representative sample because the number of students per foreign language class may not be the same. Since classes have different numbers of students, one may have a very large number of students while another may have only a few. Taking equal number of students per class is not a representative sample because it doesn't represent the students correctly.
I think it’s c sorry if it’s wrong
If I understand this, you have the equation 6(2x+7)-5. This is equal to 12x+37. Hope this helps.
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is this even a problome becuse i never seen such a question
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