Q#8 FINANCE ,PLEASE HELP, WILL GIVE THUMBS UP

Break-even sales and sales mix for a service company It is assumed that the fuel, crew salaries, and airplane depreciation are fixed, regardless of the number of seats sold for the round-trip flight. Total number of seats at break-even seats b. How many business class and economy class seats would be sold at the break-even point? Business class seats at break-even seats Economy class seats at break-even seats