Which of the following metrics demonstrates to a project manager if a project is overspending or underspending?

A company hires an outside vendor to provide 24/7 support.
Which of the following documents would determine the contractual obligations?

Which of the following is the primary purpose of an MOA or an MOU?

A project manager does not have enough time to complete several tasks on a critical path.
The budget is a low concern. Which of the following should be used to complete the tasks on time?

A project manager is not going to finish a project on time but cannot change the deadline or add more budget.
Which of the following types of change would allow the project manager to finish the project successfully?