Having 2 issues - valid addresses and number extraction

Issue 1 - Valid Addresses

I linked a valid Google Maps API key. When I enter addresses that I know are valid, it says the address is not valid. Not sure if I have to change settings anywhere.

Issue 2 - Number Extraction

I'm not fully understanding this section. I'm trying to create functionality where the user enters in a number and if it's within the range (equal to or less than), they can move onto the next interaction. I selected the Custom Variable as it was the only option that allowed me to have less than/equal to. I guess I'm not fully understanding the custom variable key and the argument sections. If I wanted the correct number to be let's say 5000 or less, how would I have to setup this interaction?