Answer:
A business owner pays for rent and equipment at their office ⇒ FIXED COSTs since the amount of rent paid should be the same year after year
An airline considers the costs of serving food and beverages to its passengers ⇒ VARIABLE COSTS since the cost of serving food will increase as the number of passengers increase, or will decrease if the number of passengers decrease
A company considers the costs it pays to its employees ⇒ VARIABLE COSTS since the number of employee can vary and the number of hours worked can also vary
A clothing manufacturer buys new machines for its factory ⇒ FIXED COSTS since the machines are depreciated at a predetermined rate that doesn't depend on the factory's output