The total profit function for National Grid Power Corporation is given by the equation

=+1+2212212

Where 1 is the total quantity of crude oil, and 2 is the total quantity of gasoline needed to produce electricity. However, there is a cash shortage and the company only has 200 million for purchasing raw materials. The price of crude is 20 and the price of gasoline is 40. Find the optimum amount of gasoline bought. Use a = -21, b = 45, c = 25, d = 79, e = 75, f = 3 for your calculations.