New PMP Question & Answers with explanation

A project manager requires laptops for the project team to start the project. The contracted vendor notifies the project manager that they will be two weeks late on delivery. The project manager selects a replacement vendor that immediately supplies the laptops. Now the original vendor receives their shipment and bills the project in accordance with their contract terms. What should the project manager do next?
Select one
A project manager needs to outsource 1,200 resource hours. Due to internal policies, each provider must understand the requirements. What should the project manager do to ensure this?
Select one
A supplier has been awarded a firm fixed price (FFP) contract to provide various materials for a construction project. The contractor has received all pertinent documents relating to material standards and specifications. By contract, the supplier must deliver all materials to the construction site on a specific date. When the materials arrive at the site on time, what should the project manager do?
Select one