My best guess would be that the independent variable is A. the amount of miles Larry drives. An independent variable is one that isn't changed by the other variables you are trying to measure. The amount of miles Larry drives doesn’t depend on anything in this situation. The question only mentions gallons of gas and miles so I would think you disregard the type of roads Larry drives on and type of car Larry drives. The amount of gasoline Larry uses is a dependent variable because it depends on the amount of miles Larry drives. Hope this helps
I have attached a chart of the given information. Using subtraction from 100 and the other totals, you should be able to figure out the answer. If not, comment and I will send the completed chart
