document.write( "Question 40693: 2.6 52)\r
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\n" ); document.write( "\n" ); document.write( "The electricity costs of a business decreased from 12,000 one year to 10,920 the next. what is the rate of decrease?
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Algebra.Com's Answer #26077 by Nate(3500)\"\" \"About 
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(change of cost)/(change of time)
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