1. Every month, Ms. Regalado pays off his car loan through automatic payments (withdrawals) from her savings account. She pays the same amount on her car loan every month. At the end of the year, her savings account balance changed by –$2,931 made on his auto loan.

A. What is the change in the balance of Ms. Regalado every month? How do you know?
B. Describe the total change in the savings account of Ms. Regalado after making six monthly payments on her car loan. Use an equation to model your answer.
Explain your reasoning.