a$.$ How much should be shipped from each facility to each location $($the value of the decision variables$)?$ What is the minimum total cost $($the optimal solution$)?$

b$.$ What is the breakeven point for Solutions Plus? That is$,$ how low can the company go on its bid without losing money?

c$.$ If Solution Plus wants to use its standard $15\%$ markup, how much should it bid?

d$.$ Freight costs are significantly affected by the price of oil. Run the Solver model again with the following new freight cost. What are the new results $($# of shipments from

cincinnati to pedeleto$\backslash$