Mathematics, 12.10.2019 00:00, whitenose

Amy purchased 17 pencils and 18 pens for a fund-raiser at school and spent $61.50. jocelyn purchased 10 pencils and 21 pens and spent $57. how much does each pencil cost?

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Amy purchased 17 pencils and 18 pens for a fund-raiser at school and spent $61.50. jocelyn purchased...