Please Help order of magnitude word problem
5. The hominid species Homo erectus emerged approximately 1.8 million years ago. The Declaration of Independence was signed 237 years ago.’
a. Determine the order-of-magnitude differences in the times when Homo erectus emerged and when the Declaration of Independence was signed. If these were plotted on a logarithmic scale, how many units apart would they be?

Question

Please Help order of magnitude word problem 
5.	The hominid species Homo erectus emerged approximately 1.8 million years ago. The Declaration of Independence was signed 237 years ago.’
a.	Determine the order-of-magnitude differences in the times when Homo erectus emerged and when the Declaration of Independence was signed. If these were plotted on a logarithmic scale, how many units apart would they be?

anonymous · Answer

b.	On a logarithmic scale, the time when the Egyptian pyramids were built is approximately 2.3 units to the right of the time when Homo erectus emerged. Based upon this observation, when were the Egyptian pyramids built?