Start by subtracting the last two numbers
        
             
        
        
        
Answer:
The mean is 
Step-by-step explanation:
 
        
                    
             
        
        
        
Step-by-step explanation:
Let's solve for c.
5c=d
Step 1: Divide both sides by 5.
5c
5
=
d
5
c=
1
5
d
 
        
             
        
        
        
Answer:
10*4-6*2=28
Step-by-step explanation:
 
        
                    
             
        
        
        
Hello! I would love to help!
The answer is -10,-1
Basically, you have to fill -10 in for x and -1 in for y in each equation. If the equations are true, that is the right answer!
Hope this helped! Comment if you have questions!