A phone company offers two monthly charge plans.

In Plan A, there is no monthly fee, but the customer pays 0.06$ per minute of use.
In Plan B, the customer pays a monthly fee of $12.60 and then an additional 0.04$ per minute of use.

For what amounts of monthly phone use will Plan A cost more than Plan B?

Use m for the number of minutes of phone use in a month, and solve your inequality for m.