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Transitive property of addition
We will not know the answer because you didn't tell us the radius or anything
<h3>
Answer: Choice B. f(x) = 100 - 68x</h3>
Work Shown:
Solve for y. Then replace y with f(x).

Effectively this involves adding 1000 to both sides and subtracting 680x from both sides, afterward we divide both sides by 10 to isolate y.
Answer:
2
Step-by-step explanation:
Just use the quadratic formula