OR Minimization problem

Hey guys,
I'm trying to solve a problem for OR course but I'm not sure exactly what do I need to do.
I attached a pdf file with description of the problem. any input will be helpful. thank you

Hi and welcome to the board

It is not in the habit on this forum to help with homework, but I think you might need XL's Solver

You are correct. I just don't understand exactly what are the objective function values and what do I minimize?