Use the following information Sales of organic food have increased rapidly in recent years The demand for organic food seems to be unquenchable says Laura Batcha of the Organic Trade Association Suppose the rate of increase in organic food sales from 2006 to 2016 in a certain country can be modeled by 6 43 1 26x 6 x 16 0 otherwise f x where x represents the number of years since 2000 and f x represents the rate of change in organic food sales in billions of dollars What were the total sales in billions of dollars of organic food in this country from 2007 to 2011 billion