2/5
I belive that’s the answer
        
             
        
        
        
Answer:
90
Step-by-step explanation:
a)
Since, to find the average of a set of numbers, you need to add them all together and divide by the amount of numbers:

b)
Multiply both sides by 4:

Hope this helps!
 
        
             
        
        
        
Answer:
{ 4,8}
Step-by-step explanation:
The intersection is what the sets have in common
 {1, 4, 8, 12}∩ {2, 4, 6, 8}
{ 4,8}
 
        
                    
             
        
        
        
Answer:
x = -3
y = -14
Step-by-step explanation:
4 + 6x = -2 + 4x
6x - 4x = -2 - 4
 2x = -6
 x = -3
y = -2 + 4(-3)
y = -14
y = 4 + 6(-3)
y = -14
 
        
             
        
        
        
Answer:
false.
hay is for horses, not hey
Step-by-step explanation: