The three blood banks in Seminole County, Florida, are coordinated through a central office that facilitates blood deliv

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The three blood banks in Seminole County, Florida, are
coordinated through a central office that facilitates blood
delivery to four hospitals in the region. The cost to ship a
standard container of blood from each bank to each hospital is
shown in the table below. Also given are the biweekly number of
containers available at each bank and the biweekly number of
containers of blood needed at each hospital.
a. Is the problem balanced?
[ Select ] ["cannot determine", "",
"No", "Yes"] ,
b. How many pints of blood are you short?
[ Select ]
["30", "0", "13", "20"]
c. What is the optimal solution? $
[ Select ] ["2,500", "1,300",
"2,020", "2,000"]