For her phone service, Lisa pays a monthly fee of $27, and she pays an additional $0.05 per minute of use. The least she has bee
n has been charged in a month is $90.70. What are the possible number of minutes she has used her phone in a month? Use m for the number of minutes, and solve your inequality for m.
The equation to find the amount of money spent is 27 + 0.05m. This equation, in this case, needs to be larger or equal to 90.70. So our inequality would be:
