Hey man what you have to do is multiple all the sides
<h3>
Answer: 1/2</h3>
The midsegment is always exactly half as long compared to the side it's parallel to.
Put another way, the longer side (4x+20) is twice long as the midsegment (3x).
So it would be x12 to the 2nd power, kinda hard to explain but i really hope this helped
Answer:

Step-by-step explanation:
<u>Step 1: Make an expression</u>
<u />
<u>Step 2: Cross Multiply</u>
<u />


<u>Step 3: Divide both sides by 4</u>
<u />

Answer: 
y = -2/3x + 5
this is the slope intercept. -2/3 is the slope and 5 is where it intercepts the y axis.
hope this helps