The first, second, and third choices are correct; if Mandy answered
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times as much as Erica, then the number of questions Erica answered times
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is equivalent to Mandy's number of answers. Likewise, the number of Mandy's answers divided by
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is also equivalent to Erica's number. If solved, using the value given for
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,
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and
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÷
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both result in
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, thus making the third choice true.