Instead use WolframAlpha.com for math questions I would paste the answer but a cretinous fop has "disabled" that feature by javascript -- which is trivial to circumvent but I won't bother with the time.
Answer:
Well the first digit of the quotient for 6,139 / by 153 can go in between 1 and 3
Step-by-step explanation:
I hope this helps now have a good and blessed day
Y is 72 because it is 180-108=y