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Sibble Corporation is considering the purchase of a machine that would cost $330,000 and would last for 7 years. At the end of 7 years, the machine would have a salvage value of $25,000. By reducing labor and other operating costs, the machine would provide annual cost savings of $63,000. The company requires a minimum pretax return of 11% on all investment projects. (Ignore income taxes) Click here to view Exhibit 138-1 and Exhibit 138-2 to determine the appropriate discount factor(s) using tables