A new automobile is purchased for $20,000. If V = 20,000(0.8)^x, gives the car’s value after x years, about how long will it take for the car to be worth $8,200?

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