Answer:
Algebraic expressions are simplified by using given operators 
like as arithmetic 
But in algebraic expression there are terms
 
        
             
        
        
        
Answer:
3x - 4 and 2x + 15
Step-by-step explanation:
        
                    
             
        
        
        
Step-by-step explanation:
Parallelogram
Reflect y=-1 ;x changes sign
 
        
             
        
        
        
Answer:
y=4
Step-by-step explanation:
 
        
             
        
        
        
Answer:
4, 9v, and 6w
Step-by-step explanation:
I'm pretty sure it's right