30. When marginal costs are below average total costs, a. average fixed costs are rising. b. average total costs are falling. c. average total costs are rising. d. average total costs are minimized.
30. When marginal costs are below average total costs, a. average fixed costs are rising.b. average total costs are falling.c. average total costs are rising.d. average total costs are minimized.
30. chi phí Khi biên dưới tổng chi phí bình quân một. chi phí cố định trung bình đang tăng lên. b. tổng chi phí trung bình đang giảm. c. tổng chi phí trung bình đang tăng lên. d. tổng chi phí trung bình được giảm thiểu.