Refer to Figure 15-6. The profit-maximizing output and price for the monopolist are

A normal good is defined as a good

A) for which demand increases when income increases. B) with a downward sloping demand curve. C) for which demand increases when the number of demanders increases. D) for which demand increases when the price of a substitute rises. E) for which demand increases when the price of a complement falls.

In the above figure, the price paid by the buyer before the tax is ________ per compact disc, and the price paid by the buyer after the tax is ________ per compact disc

A) $20; $20 B) $20; $30 C) $30; $20 D) $30; $30