Answer:
I think it would be like f x2 so you would reorder the term and get 2f
Step-by-step explanation:
Number one is the 2nd choice
the answer is 40
in
X 1 (+1) 2 (+1) 3 (+1) 4 (+1) 5
Y 4 (+9) 13 (+9) 22 (+9) 31 (+9) 40
It’s a variable because when you justo I can’t stay the same every time it changes