$2\mathrm{.}1$ You are a project manager tasked with overseeing the construction of a new commercial building in Sandton. Your team is in the planning phase, and you need to provide accurate cost estimates to secure funding and resources for the project. You have gathered initial data on materials, labour, permits, and other relevant expenses. To ensure the success of this project, you are advised to explain tools for cost estimation. $(10)-$ IT project Manage