optimal flexible

please help

having trouble understanding

1- What is the annual cost if Lightning uses the current network (with warehouses specialized as in Table 2) optimally to meet European demand? (10 points) 2. Should Simone make all warehouses flexible, given the additional cost of 200,000 euros per year? (10 points) 3- What supply chain network configuration do you recommend for the long term if demand is as in Table 1? Should any warehouses be closed? Should any warehouses see their capacity doubled? (20 points)