Name the definitions given below:

______________	1.	Technique that examines changes in profits in response to changes in sales volumes, costs, and prices.
______________	2.	Percent by which the selling price (or revenue) per unit exceeds the variable cost per unit, or contribution margin as a percent of revenue.
______________	3.	Diagram of the relationship between total revenues and total costs; illustrates how an organizations profits are expected to change under different volumes of activity.
______________	4.	Index of the extent to which the cost function is made up of fixed costs.
______________	5.	Total revenue minus total variable costs.
______________	6.	Proportion of different products or services that an organization sells.
______________	7.	Excess of an organizations expected future sales (in either revenue or units) above the breakeven point.
______________	8.	The level of activity where equal cost or profit occurs across multiple alternatives.
______________	9.	Selling price per unit minus variable cost per unit.
______________ 10.		Level of operating activity at which revenues cover all fixed and variable costs and there is no profit.
______________ 11.		Margin of safety as a percentage of actual or estimated sales (units or revenues).
______________ 12.		A systematic tendency for people to be overly optimistic about the outcomes of their plans and projects.