Need answers for this linear programming model by Excel solver. Also need sensitivity report:
Min. 550S + 425R + 350E
S.T.
67,000S + 55,000R + 46,000E < 600,000 Budget
75,000S + 50,000R + 25,000E > 550,000 Demand
S+R+E < 15 Maximum Vehicles
E < 3 Maximum Econo-Tankers
0.5S - 0.5R - 0.5E < Maximum 50% Super Tankers
S, R, E > 0