Let the attendees in opposition be x. This means that the attendees in favour are x+6.
That means x+x+6=42, which is 2x+6=42, so 2x=36 and x=18. Therefore, there are 18 attendees who opposed it.
Answer:
I'm assuming you mean a compression of factor 6
In that case, it will be h = 1/6x
C, 62
Line segment SQ=180, because it is a straight line
90+28=118
180-118=62
hope this helps:)