Mr. Chang's class has 28 students, 7 of whom are girls. Which equation shows how to determine the number of girls in Mr. Chang's class?
1.)28➗ 4 / 7= 49
2.) 28 x 4/7 = 16
3.) 4/7 ➗ 28 = 1/49
4.)7/4 ➗ 28 = 1/16

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