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Mathematics, 26.07.2019 06:50 ERIKALYNN092502

At dorothy's hair salon, 4 gallons of shampoo will last 3 weeks. she has 7 gallons of shampoo. how much more must she order if she wants to have enough for 12 weeks? i will give brainliest

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At dorothy's hair salon, 4 gallons of shampoo will last 3 weeks. she has 7 gallons of shampoo. how m...
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