For his long distance phone service, Ivan pays a $3 monthly fee plus 11 cents per minute. Last month, Ivan's long distance bill was $17.19 . For how many minutes was Ivan billed?
To find the answer, you would first subtract 17.19-3=14.19. Then, divide 14.19/0.11=129. He was billed for 129 minutes (You divide 14.19/0.11 because 0.11= 11 cents
