Answer :
In two days, the bank account declined by $24.
Definition of subtraction
Subtraction is an arithmetic operation. It is the process of taking one number from another number. The sign that is used to represent subtraction is -.
Determining the change in the account.
In order to determine the change in the account in two days, subtract -$51 from -$75.
-$75 - (-$51)
= -75 + 51
= $-24.
To learn more about subtraction, please check: https://brainly.com/question/854115