Respuesta :

sqdancefan

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Answer:

  (c)  m > -49

Step-by-step explanation:

To solve, multiply by the reciprocal of the coefficient of m. Because that is negative, the inequality symbol must be reversed.

  (-3/7)m < 21

  (-7/3)(-3/7)m > (-7/3)(21)

  m > -49

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