Answer:
8.5 Yards
Step-by-step explanation:
Pythagorean Theorem: 
a = 6
b = 6
Therefore:
= 8.485
The path is 8.5 yards long
Answer:
C
Step-by-step explanation:
Reason number 1 (before) is that you could contaminate your samples if you have foreign material on your hands.
Reason number 2 (after) is that you could spread<span>/or ingest dangerous chemicals or substances that you have handled in the lab.</span>
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