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September 16, 2014

September 16, 2014

Posted by **Lily** on Wednesday, December 5, 2012 at 9:53pm.

- math -
**Reiny**, Wednesday, December 5, 2012 at 10:42pmcost per square foot = 120/30 = $4.00 per square foot

twice 7.5 = 15

three times 4 = 12

new area = 15(12) = 180

cost = 180(4) = $720

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