help please look for mistake

Question

https://code.sololearn.com/cplRJNReksmy/?ref=app

Answer 1

A valid phone number consists of exactly 8 numbers and STARTS with 1, 8, or 9:
r"[189]\d{7}quot;

Answer 2

Thanks! it helped! I will keep this in mind

Answer 3

Hint: Your regex needs to know the beginning and/or end of the pattern.
^ $