Answer:
#3:8n-4
Step-by-step explanation:
combine like terms
3n+n=4n
-7+5=-2
4n-2
multiply that by 2 to get the perimeter, which is 8n-4
the answer for g is -3 that is all I know
(1,400)
Hope this helps
1. 2x-4x
2x
2. 3+5
8
3. 2x*8
4,400 :)
