1. List the independent variable described in the problem and define it as the variable x using the unit dollars2. List the dependent variable described in the problem and define it as y using the unit dollars

You are about to leave for a long trip to the Pacific Coast of the United States. The total trip is 2030 miles. You know that you need to get an oil change before you leave. The cost of the oil change is $75. Your car averages 21 miles per gallon. The cost of the gasoline will depend on the location where it is purchased. You can only estimate what the average cost of gasoline might be. What will be the cost of driving to the Pacific Coast