For his long distance phone service, Deshaun pays a $7 monthly fee plus 7 cents per minute. Last month, Deshaun's long distance bill was $15.54 . For how many minutes was Deshaun billed?
about 2.2 minutes takes $7.07(cents) and multiply it by 2.1 and you get 14.847. Multiply it by 2.2 and you get 15.554 which is pretty close to $15.54