Part 1: Kevin works at an Internet Café. The café charges customers based on the amount of time they use on the Internet. There’s a flat fee of three dollars for all users. In addition, users are charged .20 cents for each 10 minute. They use the Internet.
Part 2: A customer at the café is charged $4.60 for her time on the Internet. How many hours was she on the Internet? Show your work.