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Xelga [282]
3 years ago
12

G

Mathematics
1 answer:
kvv77 [185]3 years ago
8 0

Answer:

Girls in Mr. Chang's class: 28 - 21 ; # girl students = # total students - # boy students ; 7 girl students.

Boys in Mr. Chang's class: 28 - 7 ; # boy students = # total students - girl students ; 21 boy students.

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