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Mathematics, 10.12.2020 19:00 nguyendavis17

Claire's stamp collection has 100 stamps and she buys 5 new stamps each month. Harriet's collection has 400 stamps and she sells 15 stamps per month. After how many months will Claire have more stamps than Harriet?

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Claire's stamp collection has 100 stamps and she buys 5 new stamps each month. Harriet's collection...
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