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John and Ariana bought school supplies John spent 9 70 on 5 notebooks and 4 pens Ariana spent 7 10 on 4 notebooks and 2

John and Ariana bought school supplies John spent 9 70 on 5 notebooks and 4 pens Ariana spent 7 10 on 4 notebooks and 2 pens What is the cost of 1 notebook and what is the cost of 1 pen Part 0 2 3 Part 1 of 2 The cost of one notebook is 3

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