Question: Mrs. Magdalino kept records on how much she spent on gasoline and the maintenance of her car. She found that it cost $485 to drive 500 mi in a month. a) Find the cost per mile. Write an equation that relates the cost c for gasoline and maintenance of a car to the number of miles m the car is driven. b) Use the equation to find the cost for driving 1200 miles. c) About how many miles are driven for a cost of $820?