please answer all as they correlate with each other. answer asap for a like :)

The following matrix contains data for a transportation problem. How many units must be available from Supplier #3 for this to be solved as a balanced transportation problem? Enter you answer as a whole number. The following matrix contains data for a transportation problem. How many units must be delivered from Destination #1 for this to be solved as a balanced transportation problem? Enter you answer as a whole number. The following matrix contains data for a transportation problem. After solving the problem with Excel Solver, what is the minimum total cost? Round your answer to the nearest whole dollar