Answer: 216/343 or 0.6297
Step-by-step explanation:

Hi, seems like the answer is f(x) = x - 4
Edit: this was my original answer, but I was apparently completely out of my mind when I wrote it. The correct answer is f(x) = -4x + 50, as I stated below. I'm very sorry for any trouble I caused
Answer:
128
Step-by-step explanation:
Answer:
56.43
Step-by-step explanation:
52.25 + 4.18 (8% tax)
3c = 12.69
where c = # of greeting cars