Break$-$even sales and sales mix for a service company

Zero Turbulence Airline provides air transportation services between Los Angeles, California, and Kona, Hawaii. A single Los Angeles to Kona round$-$trip flight has the following operating statistics:

Line Item Description Amount

Fuel $$8,949$

Flight crew salaries $6,854$

Airplane depreciation $3,237$

Variable cost per passenger$$business class $40$

Variable cost per passenger$$economy class $30$

Round$-$trip ticket price$$business class $510$

Round$-$trip ticket price$$economy class $280$

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.

a$.$ Compute the break$-$even number of seats sold on a single round$-$trip flight for the overall company product, M$.$ Assume that the overall product mix is $10\%$ business class and $90\%$ economy class tickets.

Total number of seats at break$-$even fill in the blank $1$ of $1$

seats

b$.$ How many business class and economy class seats would be sold at the break$-$even point?

Business class seats at break$-$even fill in the blank $1$ of $2$

seats

Economy class seats at break$-$even fill in the blank $2$ of $2$

seats