Mathematics, 08.07.2019 09:30 nakeytrag

One day a gir bought 20 first class stamps and 10 postcard stamps for $11.10 another day she spent $47.30 on 80 first class stamps and 50 postcard stamps find the cost of each type of stamp

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One day a gir bought 20 first class stamps and 10 postcard stamps for $11.10 another day she spent $...

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