Question

kelly subscribes to a service called mysongs for downloading music she pays a $7 fee each month to download an unlimited number of songs at $0.20 each month last month kelly's bill was $23.80

Answer 1

subtract the $7 fee from the total first:

23.80-7 = 16.80 was spent on songs

divide by cost of each song

16.80 / 0.20 = 84 songs were downloaded