The answer is B, f(x) = 4x + 4.
If you substitute 2 for x, the resulting answer will be 12, therefore it is correct.
Answer:

Step-by-step explanation:

Answer: y=3x+500 and y=2x+400
Step-by-step explanation:
you are going to get the weekly salary anyways, but the percentage of sales all depends on what you are doing to make sure you are selling things.
Number 1 is 2.5, hope this helps a bit!
Answer:
I'm pretty sure it's both, but I can see this is a summative exam/test so I'm really sorry if it's wrong.