Math Question #32

This chart shows the actual and predicted gasoline sales for one year. During which month was there the greatest difference between the predicted and actual gasoline sales?

Image depicting Graph Chart with numbers ten through ninety on left side and the months along the bottom. Chart shows both predicted and actual sales for each month. January's difference is two. February's difference is two. Marches difference is two. April's differenc is two. May's difference is one. June's difference is two. July's difference is two. August's difference is one. September's difference is seven. October's difference is one. November's difference is four. December's difference is one.

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