Answer:
A
Step-by-step explanation:
removing 1 x-tile from each side
this is absolutely false.
b there is no soulotion...
a = 20, b = 5
| x-a| ≥ b
| x - 20 | ≥ 5
a = 20 ... car speed
b = 5 ... either 5 m/h above or lower than the limit speed 20 m/h