Gary and Sheryl are discussing driving to visit some relatives who live $689$ miles away. Gary suggests that it would be better to rent a car, while Sheryl points out that then you'd be paying the rental fee on top of gas.

They decide to explore the cost of gas for the trip to h$$lp make a decision.

Using the information below, calculate the total cost of gas to make a round trip $($meaning$,$ going there AND coming back$).$

Price of gas: $$3\mathrm{.}00$ per gallon

Length of trip $($one way$)$: $689$ miles

Total cost of gas for the round trip: $

What do you think about this? Is there more that they should consider to make this decision?