The total number of audiences who went to watch movies in a certain cinema from January to December can be modeled by the function f(x) = 4x3+10x2+2984x+12032 and the number of movies showed from January to December can be modeled by g(x) = 2x + 8, where x is the number of  months since January. Which of the following expressions correctly describes the average number of audiences per movie?

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