Northampton City Tours (NCT) offers personalized historical and architectural tours in a large midwestern city and the local suburbs. NCT charges $376.00 per trip to or from the airport. The variable cost for a tour totals $55.00, for fuel, driver, and so on. The monthly fixed cost for NCT is $13,482. Required: a. How many tours must NCT sell every month to break even? b. NCT's owners believe that 50 tours is a reasonable forecast of the average monthly demand. What is the margin of safety in terms of the number of tours? Note: Round your answer to the nearest whole number. a. Break-even point b. Margin of safety tours tours