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A firm is producing 25 units of output. Its total revenue is $600 and its average variable cost is $25. Which of the following is correct about the firm in the short run? O The firm should definitely stay open. O The firm should definitely shut down. O More information is needed to know if the firm should stay open or shut down.A contractor that builds homes needs workers for a project. He buys out a stafng agency that has on staff carpenters, plumbers, drywallers, cement masons, electricians, and painters. Which method of input procurement has the contractor used? 0 spot exchange 0 vertical integration 0 contract 0 horizontal integration