When a firm operates at an output level of 9,000 units, the per-unit cost is $5. When the production is between 10,000-12,000 units, the per-unit cost is $4. At a production level of 13,000 units, the production cost is again $5 per unit. At 14,000 units and above, the production cost increases further. At what output level does the firm experience economies of scale

6carla would like to buy a dress, a dresser for her bedroom, and a home theater system. she has one month's worth of living expenses in her emergency fund. carla decides to save for the home theater system. did carla make the right decision? why or why not? a. yes; her emergency fund is full and the other items will probably be less expensive. b. yes; she could save more for her emergency fund, but the home theater will be harder to save for. c. no; she should save more for her emergency fund because she has saved less than the recommended amount. d. no; she should have bought the dress and dresser first because she could afford them right away. reset next