Answer:
New Balance = (-$150) + (-$170)
Explanation:
To find Ji-yoon's new balance in her checking account after writing a check for $170, you can use the following expression with addition:
New Balance = Initial Balance - Check Amount
New Balance = (-$150) - $170
Now, you can simplify this using addition:
New Balance = (-$150) + (-$170)
So, the expression with addition to find the new balance in Ji-yoon's account is:
New Balance = (-$150) + (-$170)