$$Case $($A$)$Case $($B$)$Case $($C$)$Beginning Balance $($BB$)?$$ $28,000$$ $12,900$Ending Balance $($EB$)$$ $72,00024,20013,300$Transferred In $($TI$)154,600102,700?$Transferred Out $($TO$)169,600?26,100$

For Case $($A$)$ above, what is the Beginning Balance $($BB$)?$