A. You are provided with the following information on total revenue and total cost functions for Norwegian company that operates in leisure and entertainment industry. Total revenue = 50x - 5x2 - 2x3 Total cost = 40 + 30x -2x3 Use the economic model of cost-volume profit analysis to determine; i. Break even quantities ii. Maximum profit B. Discuss the three decision making environment that may influence an investor's decision C. Discuss the main roles of the management accountant in the management process. D. Explain any five key uses of break-even analysis E. Discuss what you think are essentials of an effective budgetary control system.