Type your answer in the box. you may use numbers, a decimal point and/or a negative sign in your answer. stella is renting a car for a business trip. the car rental agency charges a flat rate of $60 plus $0.50 per mile for every mile she drives over 40 miles. stella’s company will pay up to $270, excluding the cost of gasoline, for the use of the rental car. what is the greatest number of miles stella can drive the rental car without spending more than $270?