How many positive votes does a sentence need to be validated? As I’m submitting welsh I don’t know if the people reviewing will be as large as the popular languages
It requires two positive votes.
A sentence needs 2/3 positive votes to be validated.
thanks both! Hopefully the sentences will be reviewed at some point.
It’s always good to engage people speaking your language to run through them. Having an in-person meeting to work together is always super effective! 
Depending on your language there is probably already mozillians there who might be interested to help you.