<span>y=3x^2-30x-7  there u go</span>
        
             
        
        
        
Answer: B
Step-by-step explanation:
Oki so I know this becaue I study to much and because if there was an answer saying this : y=6x+3 it would be wrong because it is adding to the constant
So y=6x is proportinal because it is allways constant. I forgot this was an example sorry. 
 
        
                    
             
        
        
        
SI = PRT /100
1. SI = 400*5*1/100
        = 2000/100
        = $ 20
2. SI = 1000*8.5*3/100
        = 25.5*1000/100
        = $ 255
3.  SI = 200*9*1/2*100
         = 900/100
         = $9
4.  SI = 20000*12*3/100
         = 200*12*3
         = 7200
5.  SI = 1200*4.5*6/12*100
         = 4.5*6
         = $27
  
Amount to pay = Principal + SI
                        = 1200+27
                        = $1227 ( But this answer isn't there in the options )
        
                    
             
        
        
        
Answer:
10x
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x=--2 and x=1/2
Step-by-step explanation:
this is the answer in simple form