Answer:
X=2
I really hope this helps!
1) y = 8 x = 7.5
2) y = 3 x = 12
If no base is mentioned, asssume base 10
remember

translates to

so
since no base mentioned, assume base 10

translates to

then
1000=2x
divide both sides by 2,
500=x
The correct answer would be
A. y = 0.5x + 4.5
Answer: The correct answer will be C. (Since the last comment got deleted smh)