Solution:
The Traveling Salesman Problem (TSP) is not NP-complete. It is not solvable, nor is its solution verifiable in polynomial time. The time complexity for brute force analysis is O(n!).
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For this question, a close approximation for brute force analysis time is \( \dfrac {(11-1)!} { (7-1)!}* (8.5E-3) = 42.85 \text { seconds.} \)
For comparison, if there were (21) cities then the computation time would exceed (910,761) years.
Here is an animated graphic giving a visual representation for the analysis of a seven-city TSP.
https://en.wikipedia.org/wiki/Travelling_salesman_problem#Computing_a_solution
The Wiki article also gives a comprehensive overview for the Traveling Salesman Problem.
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