If I'm right, then the answer would be B. 800. Hope I helped!
Answer:
=−ax+x2−3a+3x
Step-by-step explanation:
Convention in algebra is that we use letters such as a, b, c, etc., for parameters and letters such as x, y z, and so on, for variables.
Thus the parameters here are a, b and k. k is the constant of proportionality.
The approximate length of each highway in kilometers is 200.