They're starting with 3,000 her bank account at the end of the week her balance was $3,000 which integer represents the change in various accounts balance
1,000
0
1
-1

I believe the answer should be 0 because that she startes her bank account with a balance of $3,000 and still had $3,000 at the end of the week. This means that 0 would represent the change, since the balance did not change

The answer is 0 because of the balance she started and ended with is the same then nothing changed.

Hope this helps.

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