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Mathematics, 20.04.2020 02:21 miracle9704

Hevesh wants make 2 lines of dominoes that are both 21 inches long. Each line has dominoes spaced 1 1/2 inches apart. How many dominoes will she need for both lines

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Hevesh wants make 2 lines of dominoes that are both 21 inches long. Each line has dominoes spaced 1...
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