The table shows the amount of gas, in gallons, a truck has left after it is driven at a constant rate for a certain number of hours.

Number of Hours Driven Amount of Gas Left
3
9
4
6
5
3
Which statement is true?


The truck initially has
9
gallons of gas, and each hour
3
gallons of gas are used.

The truck initially has 9 gallons of gas, and each hour 3 gallons of gas are used.

The truck initially has
9
gallons of gas, and each hour
6
gallons of gas are used.

The truck initially has 9 gallons of gas, and each hour 6 gallons of gas are used.

The truck initially has
18
gallons of gas, and each hour
3
gallons of gas are used.

The truck initially has 18 gallons of gas, and each hour 3 gallons of gas are used.

The truck initially has
18
gallons of gas, and each hour
9
gallons of gas are used.

The truck initially has 18 gallons of gas, and each hour 9 gallons of gas are used.