Brad's Fish and Chips Restaurant is booming and as such he needs an automated beer pouring machine. He is looking at two used models, one with a life span of 4 years which costs $28,000 and another model which is newer that costs $46,000 and that has an expected life span of 7 years? Having just studied Finance 2- what will you advise Brad to do? The cash flows are after tax. The after tax cost of debt is 5% and the company's cost of capital is 9%. The after-tax cash flows for the 4 year equipment are $31,000 per year and for the 7 year machine $22,000 per year. Show all your calculations.