Your boss asks you to visually display three plans and compare them so you can point out the advantages of each plan to your customers. Plan A costs a basic fee of $29.95 per month and 10 cents per text message

Plan B costs a basic fee of $90.20 per month and has unlimited text messages

Plan C costs a basic fee of $49.95 per month and 5 cents per text message

All plans offer unlimited calling. Calling on nights and weekends are free.
Long-distance calls are included

A customer wants to know how to decide which plan will save her the most money. Determine which plan has the lowest cost given the number of text messages a customer is likely to send.