Mathematics, 22.03.2021 18:40 Gtx014

The total cost of 3 pens and 7 folders is $18.20. If the cost of a pen is Sa, and a folder is $1.10 more expensive, find a. Give your answer to two decimal places.

The total cost of 3 pens and 7 folders is $18.20. If the cost of a pen is Sa, and a folder is $1.10

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The total cost of 3 pens and 7 folders is $18.20. If the cost of a pen is Sa, and a folder is $1.10...

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