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Need help but need to show work to please

Need help but need to show work to please-example-1
User Rabin
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2 Answers

3 votes
A is the correct answer
User Mike Ante
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5 votes
Its A, if you multiplied ever equation 3 equal the same number, but one the three equals 72 while the other is 432. Also you are not * 12 boys and 12 girls. 
User Mkiever
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