8-12. TT\&E Corporation has four business locations that are each conveniently located 5mi apart and 5mi from the disposal site. TT\&E presently uses a conventional hauled container system with large open-top containers. It has been suggested to TT\&E that money could be saved by renting a fifth container from the waste collection company at a cost of $120/ month and switching the operation to the containerexchange mode (see Fig. 8-14b). Each location will be serviced 8 times per month. The extra container will be stored at the collection company's dispatch station. As suming that the operating costs are $20/h, compute the costs for both systems. Is it a wise decision for TT\&E to rent the fifth container? Assume that a=0.034 h/trip and b=0.029h/mi for all cases. State clearly any additional assumptions. 8-12. TT\&E Corporation has four business locations that are each conveniently located 5mi apart and 5mi from the disposal site. TT\&E presently uses a conventional hauled container system with large open-top containers. It has been suggested to TT\&E that money could be saved by renting a fifth container from the waste collection company at a cost of $120/ month and switching the operation to the containerexchange mode (see Fig. 8-14b). Each location will be serviced 8 times per month. The extra container will be stored at the collection company's dispatch station. As suming that the operating costs are $20/h, compute the costs for both systems. Is it a wise decision for TT\&E to rent the fifth container? Assume that a=0.034 h/trip and b=0.029h/mi for all cases. State clearly any additional assumptions