Why is this question for linear programming model?

marazmatika

I see only one variable there. Could you help me with it?

The answer involves several variables. How shall I solve it?

Attached Thumbnails

 

Mark44

Maybe I'm missing the point, too, but the only variable I see is how many lawyers to hire. From the data of the problem, the firm will need at least three lawyers, but not more than five. From the problem statement, I infer that they will hire all of the lawyers at one time, so there don't seem to be any complications like hiring a certain number of lawyers in a given month. Can you ask your professor to clarify this problem?