What are notation, parameters and decision variables? $(20$ scores$)$

b$)$ Modeling a mathematical model. $(50$ scores$)$

c$)$ Assume that: The return demand at CSC $3$ increases by $100\%$ and at CSC

$1$ increases by $50\%$ in the future, the company needs to consider the future

demand when selecting the processing center. What is the set of solution?

Please calculate fixed cost and variable cost. $(20$ scores$)$

d$)$ Please analyze if $$The customer demand need to fulfill $100\%$ to $$The

customer demand can be partly satisfied $(0$ to $100\%)(10$ scores$)$