Answer:
In solving a system of linear equations, we try to find values for each of the unknowns that will satisfy every equation in the system
Step-by-step explanation:
 
        
             
        
        
        
-0.25 would be -25/100 which can be reduced to -1/4
        
             
        
        
        
What are they asking you to do? That's the question.
        
             
        
        
        
Answer: A. f(n) = 4 ∙ 2n-1
Step-by-step explanation:
because the 1st term is 4 according to your image, and then you will have to multiply that by its common difference and using your table, to get from 4 to 8 then 8 to 16 you would multiply by 2, and you would finally multiply that by n or known as the number of terms and 1 making the equation. f(n) = 4 ∙ 2n-1 I hope this is very helpful for everyone.
 
        
             
        
        
        
The inverse of 

 is 

. (This eliminates B and D)

 translates to "if 

, then 

". This means the answer must be A.