Part 3: solve a real-world problem using a cube root functiononce isabel rented the warehouse space, she decided to post ads on several social media sites toadvertise her online bookstore. represent the number ofmonths the ads have been posted. isabelfinds that the function below describes the number of books sold as a function of the number ofmonthsher ads have been posted. f(x) 1000 (vx) 1000a) how many books were sold after 8 months? b) graph the function.