Bristol Car Service offers airport service in a mid-size city. Bristol charges $56 per trip to or rom the airport. The variable cost for a trip totals $30, for fuel, driver, and so on. The monthly fixed cost for Bristol Rainbow Tours is $7,280 Required: a. How many trips must Bristol sell every month to break even? Break-even point trips b. Bristo's owner believes that 300 trips is a reasonable forecast of the average monthly demand What is the margin of safety in terms of the number of airport trips? trips Margin of safety