It looks like it might be a scar from a cut or something. I don't think it is a stretch mark though.
To ensure access to clear and complete documentation
Answer:
x+4y-z=-5,X+y-6z=-12,3x-y-z=4
The correct answer should be an offshore life jacket.
You should always have a certain type of PFD (personal flotation device) on your boat because it may happen that it can sink and then you are doomed if you don't have something to help you such as a PFD.
Answer:
its a selection of a person who remains sober as the responsible driver. While the other person can drink alchohol in the car.
Hope this helps!