-3, 1, and 1 maybe? That's my guess.
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
Complementary angles add up to 90 degrees. Therefore, the answer is c. 18 + 72 = 90
Answer:
The first one to your left
Step-by-step explanation:
