The microbrewery industry has experience great growth since 2007 when there were a total of 1,479 microbreweries in the United States. The graph shows the approx- imate growth rate C(t) in the number of breweries per year between 2007 (t = 0) and 2017 (t = 10), with the dots representing the actual change in the given year. (https://www.crresearch.com/blog/state-craft-beer). (a) Let B(t) be the total number of microbreweries in the United States in year t. B(0) = 1,479, meaning that there were 1,479 microbreweries in 2007. Express B(t) in terms of an accumulation function. (Of what? Think about it.)