Answer
It is FALSE .
Explanation
A full body harness is a type of safety 'attire' specifically put on for the purposes of protection. Safety harness are necessarily for fall protection. It also provides the user or the worker comfortability and confidence while working on those high risky places. It is advisable that when a worker is exposed to a fall hazard which about six feet and above high to wear a harness that is tied off.
The sum would be 31/7, or 4.428571428571429 in decimal form.
Cross-platform.
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A primary key is the answer. =)