3) The following is a simplex table for a linear programming model. Complete this table, fill in the "?". marks and then answer the questions below. 3 4 5 0 0 M G Quantity X1 X3 Si S2 A1 Basic Variables X1 A1 S2 3 M 0 1 12 20 30 ? 0 0 -5/6 0 3/5 0 1 OOC 4/5 1 -5/3 ? ? 5/3 0 6/4 ? ? 1 0 ZI Z; -9 ? ? 2 ? ? ? a What happens to the value of s2 when the value of si increases by one unit? b. How much the value of xz should increase to remove xi from the solution? c. How much the value of si should increase to remove sa from the solution? d. What does the value at the X: column of the z-grow mean