Question: Because of excessive pollution on the Momiss River, the state of Momiss is going to build some pollution control stations. Three sites (S1, S2 and S3) are under consideration. Momiss is interested in controlling the pollution levels of two pollutants (P1 and P2). The state legislature requires that at least 80,000 tons of pollutant P1 and at least 50,000 tons of pollutant P2 be removed from the river. The relevant data are shown in the table given below. The last two columns give the number of tons of pollutants removed per ton treated. Determine how to minimize the cost of meeting the state legislature’s goals.