PLEASE DO NOT COPY THE ANSWER FROM PREVIOUS CHEGG SOLUTIONS THEY ARE WRONG.

Acme annually produces 359 million lb of the chemical maleic anhydride. A total of four reactors are available to produce maleic anhydride. Each reactor can be run on one of three settings. The cost (in thousands of dollars) and pounds produced in millions) annually for each reactor and each setting are given below. A reactor can only be run on one setting for the entire year. Set up an IP whose solution will tell Acme the minimum-cost method to meet its annual demand for maleic anhydride. 50 NNN Reactor Setting Cost ($ Thousands) Pounds 1 1 80 1 2 80 140 1 3 100 170 2 1 65 100 2 2 90 140 2 3 120 215 3 1 70 112 3 2 90 153 3 3 110 195 4 1 40 65 4 60 4 70 130 WN WNWNWN 105