Mathematics, 10.07.2019 18:30, nathanfletcher

Anna buys 12 pens and 20 pencils for a total cost of $16. one pen costs $0.40 more than a pencil. what would one pencil and one pen cost?

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Anna buys 12 pens and 20 pencils for a total cost of $16. one pen costs $0.40 more than a pencil. wh...