  # Three rectangles are in a row, as shown below. The first and second............what is the area of the second rectangle?

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Three rectangles are in a row, as shown below.
The first and second rectangles have a combined width equal to 7 m.
The second and third have a combined width equal to 8 m.
If the first rectangle has an area equal to 20 m2 and the third has an area equal to 25 m2, what is the area of the second rectangle?  posted Jun 29
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