Just Choose The Correct swer, No Further Explanation Needed 3) Avoidable costs are also called? a) Differential costs b) Fixed costs c) Variable costs d) Sunk costs ) Which of the following costs is not likely to be a variable cost in a bicycle manufacturing firm? a) Cost of bike tires b) Cost of bike pedals c) Factory supervisor d) Cost of bike seats 5) When using the high-low method, the variable rate is equal to the? a) Change in cost divided by the change in activity b) Change in activity divided by the change in cost c) Change in activity minus the change in cost d) Change in cost minus the change in activity