In a zero-sum game, one player's gains represent another's exact losses

When would a broker be legally required to reveal the amount of commission under a net listing?

a. when the property is listed b. after the close of escrow c. whenever the seller asks d. before the seller accepts the buyer's offer

Fixed costs ________ as the number of units produced increases

A) decrease B) increase C) divide in half D) remain the same E) increase at a diminishing rate