Answer: 8
Step-by-step explanation: if you count the angels and the sides then you'll get the answer 8..
Answer:
y= - 5x+40
Step-by-step explanation:
I graphed this out. Remember that in parallel lines, the slopes are always the same.
A and C is the answer
hope you'll learn from your teacher how?
Answer:

Step-by-step explanation:
The given polynomials can be added together by adding like terms together as shown below:
=> Add together, the coefficient of all terms that have the power of 3.




=> 


=> 


=> 


The answer = 
The answer is 0
Explanation
When doing PEMDAS you always move from left to right
4+7=11
-5-6=-11
11-11
= 0