I believe the answer is: its emergency lights are flashing
When is emergency lights are flashing, the wrecker would most likely driving toward the area where accidents happen, and they would be used to drag out ruins or the heavy vehicles that collided on the sites. Because of this, we need to provide space for the wrecker to pass if it shows its emergency lights.
Answer:
1 +1R4= {(1 +1R3)(1 + E(4r1) +L4)}1/4
1.0500 = {(1.0475)^3(1 + 0.0525 +L4)}1/4
(1.0500)^4= (1.0475)3^(1 + 0.0525 +L4)
(1.0500)^4/(1.0475)^3= 1 + 0.0525 + L4
(1.0500)4/(1.0475)^3-1.0525
L4= .0050358564 = 0.504%
Rational choice theory states that individuals rely on rational calculations to achieve outcomes that are in line with their personal objectives. These decisions provide people with the greatest benefit or satisfaction — given the choices available — and are also in their highest self-interest.