Refer to the optimization problem below.     Below are some key information from the answer report and sensitivity report for the optimal solution.     If you want to know by how much the profit per shoe can increase without changing the optimal setting of decision variables, which value should you refer to?

Homo erectus coexisted with _________ for 500,000 years.

Any lake that forms where meltwater accumulates along a glacier’s margin is called a(n)__________. 

During periods of glaciation, sea level rises.

Which of the following are not linear constraints?

​The Himalayan orogeny is the result of a collision between Africa and Eurasia.

The Universe is __________, meaning that the density __________. Select two and only two answers.  If you select more than two answers, you will receive 0 credit on this question. 

Horns form by the headward erosion of at least ______ cirques.

Valley glaciers are larger in size than continental glaciers.

Long ridges that form perpendicular to prevailing wind direction are called __________ dunes.