Answer: 3 
Step-by-step explanation:
 
        
             
        
        
        
So unit price times #of cloths=final price
unit price times 9=36.90
so 9x=36.90
divide both sides by 9
x=4.10
so D is the right answer
        
                    
             
        
        
        
Answer:
7 but im not sure
Step-by-step explanation:
 
        
             
        
        
        
I would think it would be r
        
                    
             
        
        
        
We have that
coordinates  are
<span>A(12,7), B(12,−3), C(−2,−3), and D(−2,7) 
</span>
i use the formula of midpoint <span>between A and B
</span>Xm=(x1+x2)/2    Ym=(y1+y2)/2
A(12,7) B(12,−3)
Xm=(12+12)/2=12
Ym=(7+(-3))/2=2
the point  (12,2)   <span>is halfway between A and B</span>