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Mathematics, 10.12.2020 22:20 china236

Derek collects quarters that have the names of the 50 U. S. states on them. He collected 13 different state quarters in 2.25 months. How long will it take him to collect all 50?

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Derek collects quarters that have the names of the 50 U. S. states on them. He collected 13 differen...

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