New PMP Question & Answers with explanation

A business is considering more than a dozen infrastructure upgrade projects. These projects, once delivered, will add to the organization’s overall performance but will not contribute to any of the revenue streams. Prior to initiating any such project, the value of the project to the organization must be determined. Which of the following is the most important factor to consider in such a scenario?
Select one
If an investment in a project returns 15 percent annually, how much should you invest to get $5 million by the end of the fifth year?
Select one
Few project managers collect lessons-learned information throughout the project’s life. Most tackle this in the final days of the project or, worse, after the project is complete. What is the negative consequence of this approach?
Select one