What is the allowable range for sandals?

What is the allowable range for boots

Without using Excel, explain what would happen to the optimal solution if the profits for boots increased by $$20.$

Without using Excel, explain what would happen to the optimal solution if the profits for boots increased by $$50.$

Why is What If Analysis important for managers to understand in the decision making process?

A what if analysis is important for managers to understand in the decision making process because if they can understand what happens when certain variables are switched around, they will be able to find out what the best possible solution is and how we can make the most profit possible with the constraints that we have.

Describe a constraint that could be added to this problem that would make it non$-$linear.