The city just sprayed for rodents in the homes whose owners allowed the workers to do so. Many people did not let the workers in, but they still have fewer rodents because of the spraying that took place nearby. This shows that the rodent spraying is ______.
a. a public good
b. excludable
c. a private good
d. rival
a. a public good
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The table above shows the marginal private benefit, marginal social benefit, and marginal cost of education at the College of Epsilon. What is the tuition that will make the number of students equal to the efficient number?
A) $400 B) $800 C) $2,800 D) $3,200
Which of the following correctly completes this statement? The monopolist's marginal revenue
A) will be greater than price. B) will be less than price. C) will be equal to price. D) will be greater than total revenues.
Refer to the information provided in Figure 13.2 below to answer the question(s) that follow. 
Figure 13.2 Refer to Figure 13.2. The marginal revenue of the third pound of cheese is
A. -$5. B. $5. C. $7. D. $21.
What are five reasons for the downward price-level inflexibility, especially as it pertains to wages and prices?
What will be an ideal response?