Despite a 30% drop in the average selling price of its line of phones, a major smartphone manufacturer's product shipment increased by 50%. Given this information, we would expect the company's revenue to

rise.

drop.

rise or drop.

remain unchanged.

Suppose the demand for X is given by QXd = 200 - 5PX + 8PY - 15M + 20A, where PX represents the price of good X, PY is the price of good Y, M is income and A is the amount of advertising on good X. Based on this information, we know that good X is a

complement for good Y and a normal good.

substitute for good Y and an inferior good.

complement for good Y and an inferior good.

substitute for good Y and a normal good.