The table on the left represents the proportional relationship between the cost of gas and the number of gallons purchased.
In both the table and the given information, the cost increases proportionally with the number of gallons purchased.
For example, in the table, 2 gallons cost $5.50, which is exactly double the cost of 1 gallon ($2.75). Similarly, 10 gallons cost $27.50, which is ten times the cost of 1 gallon.
The other tables do not represent this proportional relationship. For example, in the table on the right, the cost increases at a different rate for different numbers of gallons purchased.
Therefore, the table on the left accurately reflects the proportional relationship between the cost of gas and the number of gallons purchased at the gas station.