What is the commitment for the Sprint Backlog?

You are a Scrum Master for a Scrum Team. Two Developers have very different and strong arguments on how to create a user story according to the Acceptance criteria. All the Developers helped clarify points of view, but they still have questions and differences that they cannot resolve.
As a Scrum Master, what is your role in answering the team's questions?

You are a manager in an Agile organization. You need a way to measure how much business value each Scrum Team is producing.
How do you go about measuring the value produced by each team?

A software development company that uses the waterfall software development approach realizes that the cost of development of a Project has been more than what they had initially planned. The Management believes that adopting an Agile approach will help to reduce cost. Should they adopt Agile and an approach to reduce cost?

What is the Starting State?