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Mathematics, 29.06.2019 16:30 MayFlowers

For party decorations, you buy 6 rolls of crepe paper and 20 balloons for $11.90. after you start decorating, you determine that you need more party decorations. you buy 2 more rolls of crepe paper and 15 more balloons for $6.05. how much did each roll of crepe paper cost?

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