A Competitive Firm Produces Output Using Three Fixed Factors and One

Multiple Choice

A competitive firm produces output using three fixed factors and one variable factor.The firm's short-run production function is q = 524x - 4x², where x is the amount of variable factor used.The price of the output is $3 per unit and the price of the variable factor is $12 per unit.In the short run, how many units of x should the firm use?

A) 130
B) 32
C) 25
D) 65
E) None of the above.