Answer:
I think you forgot part of the question 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
StartFraction 1.55 over 1 EndFraction = StartFraction x over 3.5 EndFraction
Step-by-step explanation:

 
        
                    
             
        
        
        
moan and groan a lot ghjiouygbnjkh
 
        
             
        
        
        
Answer:
3x^2-x+5.2f\left(-3\right)-f\left(4\right) =
3x^2-x-19.6f
Step-by-step explanation:
3x^2-x+5.2f\left(-3\right)-f\left(4\right)
=3x^2-x-5.2f\cdot \:3-f\cdot \:4
=3x^2-x-15.6f-4f
=3x^2-x-19.6f