Use the following information to work Problems

Bobbie’s Hair Care is a natural monopoly. Table shows the demand schedule (the first two columns) and Bobbie’s marginal cost schedule (the middle and third columns). Bobbie has done a survey and discovered that she has four types of customers each hour: one woman who is willing to pay $18, one senior who is willing to pay $16, one student who is willing to pay $14, and one boy who is willing to pay $12. Suppose that Bobbie’s fixed costs are $20 an hour and Bobbie’s price discriminates.

Price (dollars per haircut)	Quantity (haircuts per hour)	Marginal cost (dollars per hour)
20	0	—
18	1	1
16	2	4
14	3	8
12	4	12
10	5	18

Who benefits from Bobbie’s price discrimination? Is the quantity of haircuts efficient?

(Residual dividend policy) FarmCo, Inc. follows a policy of paying out cash dividends equal to the residual amount that remains after funding 60 percent of its planned capital expenditures. The firm tries to maintain a 40 percent debt and 60 percent equity capital structure and does not plan on issuing more stock in the coming year. FarmCo’s CFO has estimated that the firm will earn $12 million in the current year.

a. If the firm maintains its target financing mix and does not issue any equity next year, what is the most it could spend on capital expenditures next year given its earnings estimate?

b. If FarmCo’s capital budget for next year is $10 million, how much will the firm pay in dividends and what is the resulting dividend payout percentage?

Which task is not typically performed by a network administrator?

a. developing network usage policies

b. installing networks

c. planning for disaster recovery

d. Web site programming

In primary succession, over time, biomass tends to (pick the correct term from the two) decrease/increase; species tend to be shorter-lived/longer-lived; and species diversity tends to decrease/increase.

Succession can be defined as a series of ____of community members at a given location until a relatively ____ is reached.

Succession at Mount St. Helens revealed the importance of biological legacies, meaning living things or products of living things that ____.

In the interaction known as ____, one species feeds on all or parts of a second organism; in the interaction known as ____, a predator feeds on prey but does not kill it immediately and may not ever kill it.

In predator-prey interactions, ____ mimicry has occurred when one species has evolved to resemble another species that has superior protective ability. When several species that have protective ability have evolved to resemble each other ____ mimicry has occurred.

Mutualism is an interaction between individuals of two species that is ____. Commensalism is an interaction between individuals of two species in which one is ____while the other is ____.

The competitive exclusion principle states that when two populations compete for the same ____, one will always out-compete the other and thus bring about the latter’s ____.