Consider this LP formulation: Minimize cost = $x+2Y subject to x+3Y is greater than or equal to 90; 8x+2y is greater than or equal to 160; 3x+2y is greater than or equal to 120; y is less than or equal to 70; and x,y is greater than or equal to 0. Graphically illustrate the feasible region and apply the isocost line procedure to indicate which corner point produces the optimal solution. What is the cost of this solution?