8-18 QZY, Inc. is evaluating new widget machines offered by three companies. The chosen machine will be used for 3 years. Company Company Company A C $25,000 $15,000 1,600 $20,000 First cost Maintenance 400 900 and operating 8,000 3,000 13,000 6,000 Annual benefit 9,000 4,500 Salvage value NOTE: Use 4 years instead of 3 years. ("The chosen machine will be used for 4 years." Solve for the following 1. Incremental ROR 2. Future Worth Analysis 3. Payback Period 4. Benefit Cost Ratio Analysis 5. Change the First Cost for Company B to $35,000 and re-calculate your answers for a - d above