Answer:

Step-by-step explanation:
For question #1:

For question #2:

Answer:
-1.9b + 7.8
Step-by-step explanation:
Perimeter = x + 5x - 2 + 7x - 4
= 13x - 6 meters answer
Answer:
x = 3
Step-by-step explanation:
8x -6 = 18
Add 6 to both sides.
8x = 24
Divide both sides by 8 to isolate x.
x = 3
Answer:
you stupid and dumb person