Answer:
Answer for A 
Step-by-step explanation:
I don't know about B , Sorry for that.
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
x^2=20 
just square both sides and u get 
x = 4.472135955
 
        
                    
             
        
        
        
<span>5 nickels , 2 quarters, and 1 pennies = 8 coins.</span>
<span> he received 2 quarters</span>
 
        
             
        
        
        
Answer:
6
Step-by-step explanation:
yoy would subtract the 6x by the 4x getting -2x+10= -2. then you would subtract the 10 from the -2 and get -2x=-12. last divide the -2 by -12 giving you positive 6