US Airways is one of the nation’s leading commercial air carriers, with hubs in Phoenix and Las Vegas. The following are some of the costs incurred by US Airways. For each cost, select an appropriate cost driver and indicate whether the cost is likely to be fixed, variable, or mixed in relation to your cost driver.
a. Airplane fuel
b. Flight attendants’ salaries
c. Baggage handlers’ salaries
d. In-flight meals
e. Pilots’ salaries
f. Airplane depreciation
g. Advertising