Aphone company offers two monthly charges plans. in plan a, the customer pays a monthly fee of $25 and then an additional 7 cents per minute of use. in plan b, the consumer pays a monthly fee of $29.40 and then an additional 5 cents per minute of use. for what amounts of monthly phone use will plan a cost less than plan b? use m for the number of minutes of phone use, and solve your inequality for m.