Which of the following about costs is always true?
a. When marginal costs are less than average total costs, average total costs will be decreasing.
b. When average fixed costs are falling, marginal costs must be less than average fixed costs.
c. When average fixed costs are rising, marginal costs must be greater than average total costs.
d. When marginal costs are greater than average total costs, average total costs will be decreasing.
A
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Economic theory suggests
A) social order is maintained only when people act in the public interest. B) as a rule, people cooperate more effectively when they're selfish compared to when they're generous. C) a great deal of effective cooperation can occur in the presence of minimal generosity and also without a great deal of government guidance and control. D) none of the above.
More than 50 percent of all U.S. school children are bused to school
Indicate whether the statement is true or false