document.write( "Question 72560: the Waltzer average phone bill increased from 16.65 to 19.98. what percentage did it increase? \n" ); document.write( "
Algebra.Com's Answer #51955 by Tutor Online(2)\"\" \"About 
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increase in bill = 19.98-16.65 = 3.33\r
\n" ); document.write( "\n" ); document.write( "percentage increase = 100*increased value/original value\r
\n" ); document.write( "\n" ); document.write( "= 100*3.33/16.65
\n" ); document.write( "=20%\r
\n" ); document.write( "\n" ); document.write( "hope this helps
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