Use the Following to Answer Questions

question 49

Multiple Choice

Use the following to answer questions :
Scenario: Private and External Benefits
A small community finds that tidy lawns and neighbourhoods provide both private and external benefits.They determine that the marginal private benefit (MPB) of lawns can be represented by the equation MPB = 50 - 0.5Q,where Q is the number of hours spent on keeping lawns tidy.The marginal private cost (MPC) of such lawn upkeep is represented by the equation MPC = 0.5Q,where Q is again the number of hours engaged in lawn upkeep.
-(Scenario: Private and External Benefits) Use Scenario: Private and External Benefits.How many hours of lawn upkeep will occur in this community,and what will be the marginal private benefit of such upkeep?

• A) 50 hours and $50
• B) 45 hours and $20
• C) 50 hours and $25
• D) 100 hours and $50

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A needle design that incorporates safety features to prevent accidental needle sticks, but requires manual activation by the healthcare provider.