According to the PMBOKGuide, one of the key skills of a project manager is to apply appropriate leadership styles to the needs and demands of various situations1. Leadership styles can range from directive to supportive, depending on the level of authority and involvement of the project manager1. Micromanagement is a type of directive leadership style that involves close supervision and control over the work of the team members2. While micromanagement may be suitable for some situations, such as when the team is new or inexperienced, it can be detrimental for others, such as when the team is senior or skilled2. Micromanagement can cause frustration, demotivation, and resentment among the team members, and hinder their performance and creativity23. Therefore, the project manager should adjust their management style to better fit senior team members, who may prefer more autonomy, trust, and feedback23. The project manager can use various techniques to adapt their management style, such as situational leadership, emotional intelligence, and coaching1 . References:
* 1: PMBOKGuide - 4th Edition, Chapter 3: The Role of the Project Manager
* 2: Micromanager Definition: 25 Signs and How To Deal With One
* 3: What is micromanaging? 6 warning signs
* : 4 Signs You're a Micromanager in Your Projects

The best course of action is for the project manager to engage with the team member to understand their concerns and work together to redefine the purpose of the report. This approach aligns with the PMI's emphasis on collaboration, communication, and stakeholder engagement as key aspects of effective project management. By reviewing the report's requirements, the project manager can ensure that it serves its intended purpose and is valuable to stakeholders, while also addressing the team member's concerns about its relevance and length. References: = Project Management Professional (PMP) Certification1, PMI Professional in Business Analysis (PMI-PBA)2.

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).
References:
PMBOK Guide - Seventh Edition, Measurement Performance Domain
PMI Practice Standard for Earned Value Management
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To avoid the problem of inaccurate cost estimation, as indicated by a CPI of 0.65, bottom-up estimating should have been used. This method involves estimating the cost of individual tasks in detail and then aggregating them to arrive at a total project cost. It is more accurate than analogous estimating because it considers the specific details of the current project rather than relying on the cost data of past projects, which may not be directly applicable. Bottom-up estimating allows for a more granular and accurate assessment of the project's financial requirements.
References:
Project Cost Management According to the PMBOK1
Estimating errors - Project Management Institute2
7 Tips for estimating your projects - Project Management Institute3

When a team member consistently ignores a rule, it's important for the project manager to address this directly with the individual12. Setting up a meeting to review the team charter allows the project manager to clarify expectations, discuss the importance of the rule, and understand the team member's perspective12. This approach promotes open communication, helps to identify any misunderstandings or disagreements, and can lead to a resolution that supports the team's effectiveness12. References:
https://pm.stackexchange.com/questions/1772/a-person-in-a-project-team-not-willing-to-follow-the-rules- what-to-do
https://www.capterra.com/resources/project-managers-can-deal-with-difficult-team-members/