11) Johnson Trucking Company wants to determine a fuel surcharge to add to its customers' bills based on the number of miles driven to each area. It wants to separate the fixed and variable portion of the truck's operating costs so it has a better idea of how distance affects these costs. Johnson Trucking Company has the following data available. Using the high-low method to derive the cost function, what should be the monthly operating costs if Johnson Trucking Company drives 20,000 miles in a month? A) $15,000 B) $25,500 C) $28,650 D) $10,500