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Mathematics 11 Online
OpenStudy (anonymous):

The rectangular floor of a storage building had a length of 25 yards and a perimeter of 90 yards. A construction crew knocked out one wall and extended the length of the floor by 10 yards. What was the area of the new floor? A. 500 yd^2 B. 700 yd^2 C. 1400 yd^2 D. 750 yd^2

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