The table below shows the cost of downloading songs from a website. Number of Songs
Number of Songs
Total Cost
Total Cost
9
9
$
2.88
$2.88
16
16
$
5.12
$5.12
20
20
$
6.40
$6.40
At this rate, what is the cost per song?

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