Mathematics, 20.10.2020 02:01 jumana3
Mr ,Smith buying pens and pencils for his classroom. Pens (x) cost $5 per pack and pencils (y) cost $4 per pack-he needs to spend $40 or more to get free shipping
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Mr ,Smith buying pens and pencils for his classroom. Pens (x) cost $5 per pack and pencils (y) cost...
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