Answer:
-6
To find the average, you first have to add each of your numbers.
(-4)+(-8)+(-12)+(0)+(-6)
-30
Next, you have to divide it by the number of terms
-30/5
Your answer is -6
If you simply it down you get

so X can technically be any number
Answer:
13.5
Step-by-step explanation:
Answer:
13yd
Step-by-step explanation:
Perimeter is all the side lengths added