Folsom Advertising, Inc. is considering an investment in a new information system. The new system requires an investment of $1,800,000 and either has a. Even cash flows of $750,000 per year or b. The following expected annual cash flows: $450,000,$225,000,$600,000,$600,000, and $150,000. Required: Calculate the payback period for each case. Note: Round final answers to one decimal place