In project management, it's crucial to engage all stakeholders and ensure their feedback is considered. When a stakeholder is not providing feedback, it's important to understand the reason behind their reluctance. Scheduling a one-on-one meeting can provide an opportunity for the project manager to address any concerns or issues the stakeholder may have, which might be preventing them from providing feedback. This approach is aligned with the PMBOK Guide's emphasis on stakeholder engagement and communication management.
While I cannot provide direct references from the PMI materials, the approach is consistent with the best practices outlined in the PMBOK Guide, which emphasizes the importance of stakeholder engagement for project success.

Net Present Value (NPV) is the most appropriate financial metric for comparing long-term project investments such as build vs. buy options. It helps assess which option provides greater value over time after considering costs and future benefits discounted to present value.
PMI recommends NPV as a key tool in investment decision-making during project selection and early planning stages.
EMV is best used in risk-based decision-making.
EV measures performance during execution.
Impact value is not a recognized PMI metric.
Reference:
PMBOK Guide - Seventh Edition, Value Delivery System
PMI Business Analysis for Practitioners: A Practice Guide

In the context of a complex research project with high levels of uncertainty, presenting the benefits of a hybrid approach to key stakeholders is crucial for gaining their support. A hybrid approach combines elements of both predictive (traditional) and adaptive (agile) project management methodologies, allowing for flexibility in planning and execution while still providing structure where needed. This strategy is particularly effective when dealing with projects that have uncertain requirements or that may experience significant changes during their lifecycle. By engaging stakeholders and securing their buy-in, the project manager can ensure that the organization is aligned and supportive of the hybrid approach, which is essential for its successful implementation123.
Reference:
PMBOK Guide - Seventh Edition4
Hybrid Project Management: The What, Why, and Hows - 4PMTI1
Agile, Traditional, and Hybrid Approaches to Project Success - PMI3
Professional in Business Analysis Reference Materials5

Budget at Completion (BAC) is the total planned value of the project. It is calculated by multiplying the number of work units by the cost per unit.
BAC = Total miles × Cost per mile
= 10 miles × US$15,000
= US$150,000
The percentage of work completed (80%) is irrelevant for this specific calculation, which only asks for the original planned total budget (BAC).
Reference:
PMBOK Guide - Seventh Edition, Measurement Performance Domain
PMI Practice Standard for Earned Value Management

According to the PMBOK Guide, effective communication is crucial for project success. The project manager should ensure timely and appropriate generation, collection, dissemination, storage, and ultimate disposition of project information. This includes direct communication with stakeholders about any changes or delays in the project schedule. By communicating directly, the project manager can manage stakeholders' expectations and maintain trust12. ReferenceProject Communications Management According to the PMBOK1; Project communication-foundation for project success2.