If a monopolist's marginal revenue is $25 and its marginal cost is $19, then the monopolist should:

Using the data in the above table, the equilibrium quantity and equilibrium price for a cellular telephone is

A) 50 thousand and $100. B) 80 thousand and $80. C) 60 thousand and $50. D) 40 thousand and $20.

Refer to Figure 9.9. At free trade, domestic consumer surplus would be

A) $20,000. B) $27,500. C) $40,000,000. D) $45,000,000. E) $75,625,000.