Samudera Resources Berhad which is a firm in an oligopolistic industry has the following demand and total cost equations: P=600 - 20Q and TC= 700 + 1600 + 15Q2 From the equations above, calculate: a. quantity at which proñt is maximized (5 Marks) b. maximum profit (3 Marks) c. quantity at which revenue is maximized (3 Marks) d. maximum revenue (3 Marks) e maximum quantity at which profit will be at least $550 (3 Marks) f maximum revenue at which profit will be at least $580 13 Marks)