A Firm's Total Revenue Function Is Given by R =

Multiple Choice

A firm's total revenue function is given by R = 100 + 10Q + 2Q2,where R = revenue and Q = quantity.Which of the following is true if Q = 10?

A) The firm's total revenue is $400 and the marginal revenue is $10.
B) The firm's marginal revenue is constant at $40.
C) The average revenue of the firm is $50.
D) The total revenue of the firm is $500.
E) The marginal revenue of the firm is $50.