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 sum of the expanded angle is 180⇒

Answer:
The slope of the line is 11/2
remember, rise over run.
Step-by-step explanation:
May I have brainliest please? :)
Answer:
Step-by-step explanation: