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3. Gail works in a flower shop, where she produces 10 floral arrangements per hour. She is paid $9 an hour for the rst eight hours she works and $16 an hour for each additional hour she works. What is the firm's cost function? The rm's cost function is (:3 A. C 2 9q for q S 80 (per day) and C =16(q 30) for q > 80. C) B. C = 0.90q for q S 80 {per day) and C = 72 for q > 80. C) C. C = 0.90q for q S 80 (per day) and C = 72 + 1.60q for q > 80. {:3 D. C = 0.90q for q :3 80 (per day) and C = ?2 +1.60(q 80) for q > 80. O E. C = 0.90q for q S 80 (per day) and C =1.60(q 80) for q > 30. The rm's marginal cost function is O A. MC =9 forq $30 (per day) and MC 2 16 for q>80. Q B. MC 2 0.90q for q S 80 (per day) and MC 2 1.60q for q > 80. Q C. MC 2 9q for q S 80 (per day) and MC 2 16q for q > 80. O D. MC 2 0.90q for q S 80 (per day) and MC 2 2.50q for q > 80. O E. MC 2 0.90 for q S 80 {per day) and MC = 1 .60 for q > 80. What is the firm's average cost function? (With no fixed costs, the average cost of production equals the average variable cost of production.) 0 A. AC 2 0.90 for q S 80 (per day) and AC 2 1.60 + ( 56.001q) for q > 30. O B. AC 2 0.90 for q S 80 (per day} and AC 2 1.60 for q > 80. O C. AC 2 9 for q s 80 (per day) and AC =16 +(721q) for q > 80. O D. AC =9 for qSBO (per day) and AC 2 16 for q> 80. O E. AC 2 9 for q S 80 (per day) and AC 2 1.60 + ( 56.001q) for q > 80