Answer:
Step-by-step explanation:
4x=12
x=12/4
x=3 answer
y=4*3=12 answer.
z=8-3=5 answer.
proof
3+12+5=20
20=20
 
        
                    
             
        
        
        
C.0.25
Meaning 25% 25 divide one hundred 
Therefore answer is 0.25
        
             
        
        
        
Step-by-step explanation:
this is the answer (y2 - y1) = m (x2 - x1)
 
        
                    
             
        
        
        
Answer:
About 2.72
Step-by-step explanation:
From reading the comments, I suppose you meant v actually means x so:
14 × 14 = 196
196 ÷ 72 ≈ 2.72
Hope this helped! :)