W 7 Three outlets in cities A, B and Care supplied by four suppliers W, X, Y and Z. The number of units available at each supplier (W, X, Y, and Z) are 30, 20, 35, and 35 while the number of units required at each outlet in cities (A, B, and C) are 30, 40, and 50, respectvely. The table shows the cost, in dollars, of transporting each unit. City A City B City C 10 8.6 X 12.5 5.5 11.5 8 8.5 Z 8.5 6 5.5 a) Write down the number of available supply and required number of demand units in respective cells in the table below. b) Obtain an initial basic feasible solution using the north-west corner method and enter the values in the table below. In case, there is no allocation in some cells, enter zeros. Do not leave any cell empty. City A City B City C Supply w Y 13 Y Z Demand c) Does the north-west corner method give a degenerate solution? Type "Yes" if degenerate, "Noif it is not. Enter your answer here d) Compute the total cost. Enter your answer here