please answer all of the following and

the total cost of the initial solution developed using the northwest-corner method =$__

thank you :)

In the following table the transportation cost for Gregory Bier Corp: are provided: The glven trantportation problem is To balance the given transportation problem, a dummy should be added. To balance the given transportabion problem, the demand for the introdubed dummy should be 255 . The starting solution using the northwest-comer method is