Answer:
a
Step-by-step explanation:
 
        
                    
             
        
        
        
You would need to use the distance formula.
Distance = Sqrt((x2-x1)^2+(y2-y1)^2)
Plug in your numbers
Distance = Sqrt((12+4)^2+(12-18)^2)
Distance = 17.09
        
                    
             
        
        
        
12x1
12x2
12x3
12x4
12x5
12x6
12x7
12x8
12x9
12x10
        
                    
             
        
        
        
Answer:
25
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
b=60
Step-by-step explanation:
6+4/5b=9/10b
   -4/5b  -4/5b
6=1/10b
divide both sides by 1/10
b=60