The average monthly bill for wireless telephone subscribers from 1985 to 2008 can be modeled by B(x) = -1323x98.072, where x is the number of years after 1980. If this model remains valid, in what year will the average monthly bill be $45.15?

Anew movie is released each year for 14 years to go along with a popular book series. each movie is 2 minutes longer than the last to go along with a plot twist. the first movie is 70 minutes long. use an arithmetic series formula to determine the total length of all 14 movies