-4 is your answer hope this helps
        
                    
             
        
        
        
Let A(4,12) and B(6,18)
RATE OF CHANGE = m = (y₂ - y₁) / (x₂ - x₁) = (18-12)/ (6-4)
m= 6/2 or m = 3
        
                    
             
        
        
        
 10%of30=3
3x4=12
 
A. 40%of 30=12 senior class members.
B. 60% of the class were not senior class members
 
        
                    
             
        
        
        
Answer:
18u most likely
Step-by-step explanation:
the triangle is 6 units wide and half of it (the height) is 6. so 6 x 6 = 36 divided by 2 = 18u