Please help me answer these study guide questions for my final!

At a particular output level, if a firm's long-run marginal cost is $10 and its long-run average cost is $10, the firm is likely to Seleal ones Q A. economies of scala O B. constant retums to scale @ C. diseconomies of scale D. sunk costs The supply function for a pack of four Never Die Batteries is Q - (D) + (6 million x P). If the price of a package of four Never Die Select one: A. increase by 1 million O B. increase by 6 million O C. decrease by 6 million O D. decrease by 1 milion As a result of bad state of nature for your firm's product, you should anticipate a price for your product than the current equi um quantity Select one: O A. higher; higher O B. higher; lower O C. lower; higher O D. lower, lower To maximize profits, a perfectly competitive firm and a monopoly will set equal to Select one: O A. marginal revenue; marginal cost O B. marginal revenue; average total cost O C. marginal cost; average variable cost D. marginal cost; average total cost