Answer:
-a^2
A
Step-by-step explanation:
-a/b=a/-b=-a/b to fraction 
-1/a^-2
 
        
             
        
        
        
-2+4 is 2/2 is (1,y)
4+0 divided by 2 is 2 
coordinate is (1,2)
        
             
        
        
        
Answer:
$3,840
Step-by-step explanation:
9600 x 0.08 =  768 per years (assuming flat rate)
768x5= 3,840
 
        
                    
             
        
        
        
I believe x=3. 
4x-3(-2)=18
4x=12
x=3
        
             
        
        
        
D is equivalent because brackets don’t change anything here