
The amount of RENT forgot to write is $ 50.
A transaction is a completed agreement between a buyer and a seller to exchange goods, services, or financial assets in return for money.
Here, Total expected amount = $ 900
     Actual amount = $ 750
     Deposit forgot = $ 100
Amount of RENT = 900 - (750 + 100)
               = 900 - 850
               = $ 50
Thus, The amount of RENT forgot to write is $ 50.
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