I need a mathematical model and solution for B.

- Your PDF file should contain your mathematical models for each question. 1. When an accounting firm audits a corporation, the first phase of the audit involves obtaining "knowledge of the business". This phase of the audit requires the following activities: (a) What is the critical path, and the minimum number of days to complete the first phase of the project? (b) Assume the first phase must be completed in 30 days. The duration of each activity can be reduced by incurring the following costs: What strategy minimizes the cost of meeting the deadline