Use the following to answer question: 
-(Table: Demand and Total Cost) Use Table: Demand and Total Cost.Lenoia runs a natural monopoly firm producing electricity for a small mountain village.The table shows Lenoia's demand and total cost of producing electricity.The marginal revenue of the fourth unit of production is:
Definitions:
Social Learning Theory
A theory that suggests people learn from observing others, incorporating the observed behaviors into their own repertoire based on seen outcomes.
Extinction
In psychology, it refers to the gradual weakening and disappearance of a conditioned response; in biology, it signifies the permanent end of an organism or species.
Behavior Modification
The use of reward and punishment to alter behavior, based on the principles of operant conditioning.
Behavior Frequency
The count of how often a specific behavior or action is performed over a set period of time.
Q46: Short-run equilibrium in monopolistic competition differs from
Q76: The LOWEST point on a perfectly competitive
Q79: (Figure: The Profit-Maximizing Firm in the Short
Q112: Defenders of advertising argue that it:<br>A)seeks to
Q140: Shops that sell live bait to people
Q178: To practice effective price discrimination,a monopolist must
Q186: (Figure: PPV)Use Figure: PPV.The figure shows the
Q194: (Figure: A Perfectly Competitive Firm in the
Q202: (Figure: Monopoly Model)Use Figure: Monopoly Model.When the
Q211: If the price is below average total