Final answer:
The change in Mrs. Greene's checking account balance each month due to her mortgage payment is approximately -$1092.08.
Step-by-step explanation:
To find the change in Mrs. Greene's checking account balance each month due to her mortgage payment, we can divide the total change in her balance by the number of months in a year. The total change in her balance is -$13,105, and there are 12 months in a year. So the change in her checking account balance each month is:
Change per month = Total change / Number of months
Change per month = -$13,105 / 12 = -$1092.08 (rounded to two decimal places).