As air is a _____, pollution tends to occur

If the short-run average variable cost of production for a firm is decreasing, then it follows that

A. average variable cost must be greater than marginal cost. B. marginal cost must be decreasing. C. average variable cost must be greater than average fixed cost. D. average fixed cost must be constant.

A production table can be used to determine:

A. how much output is produced from a given quantity of inputs. B. a firm's profits. C. a firm's costs. D. how much of a product will be demanded by consumers.