Part B Match the items below Mixed costs Variable costs Activity index Fixed costs Relevant range High-low method I. Costs that contain both a variable and a fixed element 2. Identifies the activity which causes changes in the behavior of costs 3. Costs that vary in total directly and proportionately with changes in the activity level 4. The range over which the company expects to operate during the year S. Costs that remain the same in total regardless of changes in the activity level. 6. A method that uses the total costs incurred at the high and low levels of activity (6 marks)