Answer:
-243
Step-by-step explanation:

Answer:
Simple...
you have: x-3y=18
You want to convert it into slope-intercept form or y=mx+b form-->>>
x-3y=18
Isolate the variable-->>
x-3y=18
-x -x
-3y=-x+18
Now simply divide...
-3y/-3 = -x+18/-3
y=1/3x=6
Thus, your answer.
<span> 4x + 4y = 20
If I'm not mistakened, this is in it's standard form.
Slope intercept form </span>→ y = mx + b
Let's transform this into that form.
4x + 4y = 20
4y = -4x = 20
y = -x + 5
The slope intercept form would be ⇒ <span>y = -1x + 5 </span>
Answer : 
(1) 
Use FOIL method to mulitply (3x – 5)(3x – 5)

(2) 
Use FOIL method to mulitply (3x - 5)(3x + 5)

(3) 
Use FOIL method to mulitply -(3x + 5)(3x + 5)

(4) 
Use FOIL method to mulitply -(3x + 5)(3x - 5)

So equation 2 is true
Answer:
False, a circuit must end in the same spot unless it is an Eurel circuit.
Step-by-step explanation: