Use the following figure to answer the question : Figure 9-3 : shows the marginal cost curve,average total cost curve,average variable cost curve,and marginal revenue curve for a firm for different levels of output. 
-In Figure 9-3,maximum profit per unit is equal to _____.
Definitions:
Fear Appeals
A persuasive message that attempts to arouse fear in order to divert behavior through the threat of harmful consequences.
Tobacco Labelling
Regulations and practices related to the information provided on tobacco product packaging, including health warnings and ingredients.
Elaboration Likelihood Model
A theory in psychology that explains different ways of processing stimuli, why they are used, and their outcomes on attitude change.
Marketing Promotions
Activities and techniques designed to enhance visibility, stimulate demand, and differentiate a product or service to boost sales.
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