Hans withdrew 40 dollars from his checking account write a signed number to represent this change in his account

-40

Step-by-step explanation:

I assume a signed number means a number with a positive or negative sign in front of it. If you withdraw cash from your checking account, your checking account amount decreases, so it would be like subtracting 40 dollars, or -40.

Hope this helps (●'◡'●)

It is -$40. May I have the brainiest.