Using the Internet, review at least 3 articles on Profit-Cost-Volume relationship.

I’m trying to study for my Management course and I need some help to understand this question. A. Using the Internet, review at least 3 articles on Profit-Cost-Volume relationship. Summary (300 words or more) the articles in your own words.B. As a manager, why is Profit-cost-volume important in planning? Support your response with numerical example(s)C. Using the Internet, review at least 3 articles on Variable Costing. Summary (300 words or more) the articles in your own words.D. As a manager, discuss how you would use Variable Costing in managerial decisions Support your response with numerical example(s) Read and respond to at least 3 of your classmates’ posts. Posts attached below.
Requirements: APA | Discussion | 4 pages, Single spaced

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Approximately 250 words