Mathematics, 03.08.2019 05:30 jdd0518

Plz need ! among the eighth-graders in michael's school, 70% have siblings. the eighth-grade class in 5/6 the size of the seventh-grade class. if 112 eighth-graders have have siblings, how many students are in the seventh grade? a) 128 b) 134 c) 160 d) 192

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