In which type of contract are the performance targets established at the onset and the final contract price determined after completion of all work based on the sellers performance?

What scope definition technique is used to generate different approaches to execute and perform the work of the project?

During a project team meeting, a team member suggests an enhancement that falls outside of the project charter. The project manager states that the team needs to concentrate on completing all required work.
Which action has the project manager performed?

A new manufacturing facility is being built for a consumer electronic company. The project to create it is nearing completion and will soon begin to enter the Closing phase. This will involve a number of people, but who will ultimately approve the work of the project?

A team is not delivering the committed work. Cards are not moving on the kanban board, and the burndown chart shows that the sprint progress is slow.
What should the agile project manager do?