labeling the demand curve, economics homework help

Graphthe market for water park business, labeling the demand curve, the social-value curve, the market equilibrium level of output, and the efficient level of output.
- What is the per-unit amount of the externality?
- You know that the water park will have events in the evening. This will increase both foot traffic and street traffic at night. You believe this will improve the safety of the surrounding businesses, with an estimated benefit of $3 per water park attendee. What kind of externality is this? Why?
Create a new graph illustrating the market for water park business for these two externalities. Label the demand curve, the social-value curve, the market equilibrium level of output, and the efficient level of output.
- What is the per-unit amount of both externalities?
- Discuss both government and private solutions that would result in an efficient outcome.