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Sally ordered her groceries online.  She accidentally ordered pounds of flour (instead of pounds) and only uses five pounds of flour every two months.  

  1. What is the rate of growth for this situation, including the units? 

    How many pounds is Sally going to use each month?
    Remember that she is reducing the amount of flour she has so the slope will be negative.

  2. Write an equation that represents this situation. 

    The -intercept is her starting weight. Use this and the slope you found above to write an equation in  form.