Mathematics, 06.11.2020 17:10 lullexxxx

(3b) There are 70 students in the school band. 40% of them are sixth graders, 20% are seventh graders, and the rest are eighth graders. How many band members are in seventh grade? *

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(3b) There are 70 students in the school band. 40% of them are sixth graders, 20% are seventh grader...

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