Final answer:
HR can influence the company's bottom line financially through advising senior management, determining reasons for turnover rates, and tracking birthdays.
Step-by-step explanation:
HR can influence the company's "bottom line" financially through advising senior management by providing guidance on strategic decisions that can impact the company's financial performance. Additionally, HR can contribute to the bottom line by determining reasons for turnover rates and implementing retention strategies to reduce costs associated with employee turnover. Finally, HR can also influence the bottom line by tracking birthdays and implementing employee recognition programs to improve employee morale and productivity.