Answer:
8z
Step-by-step explanation:
Since these are like terms, add the numbers together and then put the z on. 
 
        
             
        
        
        
Answer:
the last box represents a set of data 
 
        
             
        
        
        
Answer:
Answer down below.
Step-by-step explanation:
First of all, you need to start with the second section, which is 2 times -1
Doing that, will result with -2, since a positive times a negative = negative, and 2 times 1 = 2
Then, do -2 minus 4, and that gives you -6
Hope this helps!
 
        
             
        
        
        
 Answer:
- r little 4  t little 2 
- ------------------------
-             4
- sorry it didn't let me right it correctly 
Step-by-step explanation:
 
        
             
        
        
        
The invese switches x and y so basically
if
f(21)=z then f⁻¹(z)=21
therefor
f(z)=21 and f⁻¹(21)=z
basically solve for the value that makes the functino equal 21
21=6(x+2)-3
add 3 both sides
24=6(x+2)
divide by 6
4=x+2
minus 2
2=x
answer is 2