Select the term from the list provided that best matches each of the following descriptions. 1. A cost that remains constant in total when volume changes 2. The way a cost changes relative to changes in a measure of activity 3. A company's cost mix or relative proportion of variable and fixed costs to total costs 4. The difference between a company's sales revenue and its variable costs 5. Costs composed of both fixed and variable components 6. A cost that changes in total in direct proportion to changes in volume 7. A factor that causes (or drives) changes in costs 8. A condition in which a percentage change in revenue will produce a proportionately larger percentage change in net income 9. A method of estimating the fixed and variable components of mixed cost using two data observations 10. A method of estimating the fixed and variable components of a mixed cost where data are plotted on a graph and a line is visually fit to the data