how many minutes he was billed

Question

for his long distance phone service, Kevin pays a $5 monthly fee plus 9 cents per minute. Last month, Kevin's long distance bill was $15.98. For how many minutes was kevin billed?

Answer 1

15.98 - 5 = 10.98    This is the charge for minutes

m represents the number of minutes

 

10.98 = 0.09m 

 

Can you solve for m and answer?