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Mathematics, 05.10.2019 22:00 kyrabrown33

Jon lexi are playing a marble game. according to their rules 4 points are awarded for each red marble collected and 7 points are awared for each blue marble collected which expression represents jons total score if he has r red marbles and b blue maebles ?

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Jon lexi are playing a marble game. according to their rules 4 points are awarded for each red marbl...
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