Answer:
-8
Step-by-step explanation:
First we need to find the slope of CD.
We know C is (-10, -2)
and we know D is (10,6)
If we use the slope formula, we can see the slope is 

We can see point F is at (6,-4)
We can find the equation of this line by using point slope form, and plugging in F as our point.

To find where E, we need to find the y value when x = -4

The answer to this question is 5.2
Answer:
150 cause subtract 150 from 270 you get 150
The answer to your question is B.Opposite sides are parallel.
I dont get what you asking