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Mathematics, 09.06.2020 04:57 jadejordan8888

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

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