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A 500 cm 2 of paper will be used to make a rectangular poster. The poster...

A 500 cm 2 of paper will be used to make a rectangular poster. The poster has 4 cm margins on
the sides and bottom. The top margin is 6 cm. The rest of the poster will be the portion that is printed on.
What dimensions should the piece of paper have to provide the largest printed area?

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