Referring to the information below, hiring a driver costs $10. Each machine costs $100. Which method should he use and why?

Referring to the information below, hiring a driver costs $10. Each machine costs $100. Which method should he use and why?
An independent trucker has the following options: If he buys expensive machinery he can hire fewer drivers to deliver the same output. Over the course of this month he has to deliver to 50 spots. To do