C (Q) = 120+ 25Q + 30Q2 + 5Q3 a) The fixed cost of producing 10 units of output = 120 b) The variable cost of producing 10 units of output. = 25Q + 30Q2 + 5Q3 = (25X10) + (30x102) + (5x103) = 8250 c) The total cost of producing 10 units of output = 8250+120=8370 e The average fixed cost of producing 10 units of output = 120/10 = 12 e) The average variable cost of producing 10 units of output = 8250/10=825 The average total cost of producing 10 units of output = 8370/10=837 g) The marginal cost when Q = 10 is MC = 25+60Q+15Q2= 2125