Tom and Jerry are the only members of society. The table above shows their marginal benefits from defense satellites, a public good. What is the marginal benefit to society from the third satellite?

Which of the following is not a way by which price-discriminating firms can segment a market?

A) on the basis of the supplier's marginal cost of production, for example requiring customers to pay a premium for customizing options B) on basis of the buyer's location, for example requiring out-of-state students to pay higher tuition C) on the basis of time of purchase, for example long-distance calling D) by requiring an advance purchase, for example airline tickets

For this question, assume that individuals do not hold currency (i.e., c = 0). If the ratio of reserves to deposits is .10, the money multiplier is

A) .1. B) .9. C) 4. D) 5. E) 10.