1. Suppose you are deciding how many acres of local land to preserve for parks in a particular community. There are 200 community members who each receive a marginal benefit of monetary value, P such that P=9-3q, where q is the number of acres of park in their community. After 3 acres they would be satiated and P=0. Suppose there are another 3 community members who enjoy parks more and receive a marginal benefit of P=300-50q. After 6 acres they are satiated and P=0. So, there are a total of 203 demand curves. Each acre costs $1200 to preserve. Assume all 203 people can enjoy the preserved parkland at the same time, i.e. the enjoyment is not rival.

E) Show graphically the Social Marginal Benefit (like a combined demand curve if the people could coordinate) for all 203 community members and the SMC. (There may be a kink (bend) if some people are satiated before others.)