# algebra

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A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of \$1,050. At the end of March 2009, her checking account held a balance of \$800. What is the monthly rate of change for the student’s checking account over the period September 1, 2008 through March 31, 2009?

• algebra -

(1050 - 800) / 7 = \$35.71 decrease per month

100 (35.71 / 1050) = ______% decrease

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