According to the textbook, in the book version of The Wonderful Wizard of Oz, Dorothy's slippers are

A study showing that eating ranch salad dressing might be harmful to one’s health slightly reduces the demand for the product. However, a new bottling method greatly increases the production of this dressing. Considering this, the equilibrium quantity of this dressing would ______.

a. decrease b. increase c. remain constant d. be indeterminate

The following graph shows average fixed costs, average variable costs, average total costs, and marginal costs of production.Marginal cost is minimized when output equals:

A. 25 units. B. 12 units. C. 21 units. D. 6 units.