For his phone service, Deshaun pays a monthly fee of $17, and he pays an additional $0.07 per minute of use. The least he has been charged in a month is $120.95.
What are the possible numbers of minutes he has used his phone in a month?

Question

For his phone service, Deshaun pays a monthly fee of  $17, and he pays an additional  $0.07 per minute of use. The least he has been charged in a month is  $120.95.
What are the possible numbers of minutes he has used his phone in a month?

kamille · Answer

Well, firstly you need to substract monthly payment of a whole sum
1) 120.95-17=103,95$
So you know that he used 103.95& for minutes. If you want to know how many minutes he has used, you need to 

103,95:0,07=1485 the answer is 1485