Answer:
A (0.85) for Per Mile Cost
B (19) for Initial Cost
Explanation:
C = (Mile Cost * Miles) + Initial price
This is what they used.
We just have to understand how everything works out in the equation to get the answer. We can figure out with common sense that the initial price is 19 because it is added to the end price by its self, unmodified. You can also figure out that the mile price is what it is because its not the mile price if its not being multiplied by the miles (0.85m).