document.write( "Question 439581: what is the surface area of pool with length of 28ft, and width of 18 feet, and varies from 4 feet to 7 feet in depth? \n" ); document.write( "
Algebra.Com's Answer #303807 by jorel1380(3719)\"\" \"About 
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The surface area is 18 x 28 feet, or 504 sq. ft. The depth doesn't matter. \n" ); document.write( "
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