document.write( "Question 814138: the length of the poster is 3.5 feet and the perimeter of the poster is 11.2 feet. what is the width of the poster? what is the area of the poster? \n" ); document.write( "
Algebra.Com's Answer #490141 by TimothyLamb(4379)\"\" \"About 
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L = 3.5
\n" ); document.write( "2L + 2w = 11.2
\n" ); document.write( "---
\n" ); document.write( "2L + 2w = 11.2
\n" ); document.write( "2(3.5) + 2w = 11.2
\n" ); document.write( "7 + 2w = 11.2
\n" ); document.write( "2w = 4.2
\n" ); document.write( "---
\n" ); document.write( "w = 2.1 ft
\n" ); document.write( "L = 3.5 ft
\n" ); document.write( "a = Lw = 7.35 sq.ft.
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