Mathematics, 03.07.2021 04:30 lilspike420

Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 3 more than 3 times the number of marbles Mark has, how many does each boy have to sell if the total number of marbles is 67

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Mark and Don are planning to sell each of their marble collections at a garage sale. If Don has 3 mo...

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