Answer:
The number they would count is 
Step-by-step explanation:
One mole is equal to 6.02214076x10^23 particles. In order to know the number counted by every human on Earth we simply multiply the number of humans times the count a "good counter" can achieve, 4x10^9x7.44x10^9 (for USA, change to 4x10^12 if you use de British English definition). Thus:

Write full questions is that....
Answer:
The answer is 5.8
Step-by-step explanation:
I would say D, remember a negative plus a negative is a positive.
Answer:
84 inches
Step-by-step explanation:
A regular hexagon has 6 sides where all 6 sides are congruent meaning that each side is 14 inches.
Hence:
14*6=84
In Conclusion:
The perimeter of the hexagon is 84 inches.
Hope this helps!