The following is a tableau for an LP which is a MIN problem: 2 1 0 0 0 x1 x2 $1 2 3 RHS ratio 2 -4 0 0 0 -1 -2 1 0 0 1 1 0 1 0 1 1 0 0 1 0 0 2 6 (a). Fill in the value of each variable: 1, 2, 81=, 2=, 3 = (b). Which of the variables are basic? (c). This is not an optimal BFS. Which variable should be selected to enter the basis? (d). For your choice of entering variable, which variable leaves the basis? (e). What is the next tableau?