Use Exhibit 12B.1 and Exhibit 12B.2 to locate the present value of an annuity of $1, which is the amount to be multiplied times the future annual cash flow Each of the following scenarios is independent. Assume that all cash flows are after-tax cash flows. a. Campbell Manufacturing is considering the purchase of a new welding system. The cash benefits will be $480,000 per year. The system costs $2,250,000 and will last 10 years. shop will have a useful life of 6 years. to produce annual after-tax cash flows of $135,000. Required: Should the company buy the new welding system? the minus sign to indicate a negative NPV. Should she invest? $ The shop be purchased. This reveals that the decision to accept or reject in this case is affected by differences in estimated 3. What was the required investment for Barker Company's project? Round to the nearest dollar. If required, round all present value calculations to the nearest dollar