Answer:
(B) an update from the bank when an account balance is less than $50
Step-by-step explanation:
overdraft occurs when money is withdrawn in excess of what is on the current account. In this situation the account is said to be "overdrawn". This applies to debit cards and how much you have on your balance :)
Add all the like terms together so 4x-3x is x or 1x -3y-y is -4y 2z+3z is 5z so put them all together it's x-4y+5z
First introduce the following notations: