Let s represent speed.

To graph it, draw a number line. Show zero, 20, 50 and arrowheads at both ends. Draw closed circles at 20 and 50 and shade in between.
Answer:
7.92% probability that a particular death is due to a traffic accident
Step-by-step explanation:
The relative frequency approach to find the probability that a particular death is due to a traffic accident is the number of deaths due to traffic accidents divided by the total number of deaths.
We have that:
624 deaths from traffic accidents
7883 total deaths.
So

7.92% probability that a particular death is due to a traffic accident
Width = w, length =l
l-4=w
2w+2l=perimeter=72
Substituting l-4 for 2, we get 2(l-4)+2l=72 and 2l-8+2l=72. After that, we get 4l-8=72 and 4l=80, getting l=20. Since l-4=w, w=16
Answer:
The first one, the third one and the last one
You can predict that line az and line ab are congruent