You are provided with the following information on total revenue and total cost functions for a Norwegian company that operates in the 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 environments 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.