In order to pay for upkeep of a local highway, the transportation department has set up tollbooths at each of the highway’s exits. Drivers are charged a toll of $1.20 for use of the highway, and are then charged an additional $0.04 per mile driven. Write an algebraic expression that can be used to represent the total toll charged if m represents the number of miles driven. What is the toll charged to drive 14 miles on this highway?