1. Consider the following surface water problem, in which just two users are drawing water from a reservoir. The equations that describe each user's marginal net benefits (MNB) are as follows: User 1: MNB: = 20 - Q1 User 2: MNB2 = 30 - Q2 where Q equals each user's respective amount of water consumption. The aggregate marginal net benefit (AgMNB) is as follows: AgMNB = 30 - QTOT, if Q 10 where Qor equals the total amount of water consumption between the two users. a. Graph out this problem completely