algebra

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?

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asked by 1215
  1. (1050 - 800) / 7 = $35.71 decrease per month

    100 (35.71 / 1050) = ______% decrease

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