You are basically just adding, so combine like terms.
3x^2 + 5x^2 = 8x^2
6x - 2x = 4x
4 - 8 = -4
So the answer is D.
 
        
                    
             
        
        
        
Answer: 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Wait whats the question?
Step-by-step explanation:
 
        
             
        
        
        
Answer:
37.68
Step-by-step explanation:
c = 2 x 3.14 x 6
 
        
             
        
        
        
Answer:
150 is 100% of 150
Steps to solve "150 is 100 percent of what number?"
We have, 100% × x = 150
or, 
100
100
 × x = 150
Multiplying both sides by 100 and dividing both sides by 100,
we have x = 150 × 
100
100
x = 150
If you are using a calculator, simply enter 150×100÷100, which will give you the answer.