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Mathematics, 10.02.2021 20:20 Yskdl

Richard took a group of friends and their kids to see a Star Wars movie in 3D. He bought a total of 20 tickets. Adult movie tickets were $12 and children's tickets were $8. If the total cost of the tickets was $192, how many children's tickets did Richard buy?​

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Richard took a group of friends and their kids to see a Star Wars movie in 3D. He bought a total of...
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