Respuesta :

i dont know what you want to know but that would take 40 weeks till you run out of money.

The mathematical expression will be:400 - 10w

Since the outstanding balance is $400 while the amount withdrew is $10

Hence, The mathematical expression will be:

400 - 10w

Where:

$400 represent Outstanding balance

10w represent Amount withdrew every week

Inconclusion mathematical expression will be:400 - 10w

Learn more about mathematical expression here:

https://brainly.com/question/20596193