Answer:
steps and answers in the pic..hope u can understand the calculations...
Well...
2x-6x>-12+8-6
-4x>-10
Attention! ">" change for "<" because we multiply both members for (-1)
x<10/4
It is the same to say (-infinite ; 10/4) or (-infinite ; 5/2) or (-infinite ; 2.5)
Good luck!
M.
For perimeter you add up the two sides so 15 + 21 equals 36
-2m-9 is the simplified expression