Philosophy homework help

Please awnser ALL four questions:1. Address the role of unions in wage and salary policies and practices. Your response must be a minimum of 200 words.2. Explain alternative rewards systems for unions and their purpose. Your response must be a minimum of 200 words.3. Address how Employee Retirement Income Security Act of 1974 (ERISA) plays a role in executive benefits. Your response must be a minimum of 200 words.4. Summarize and explain the influence that three of the following laws or regulations play in special group compensations:Davis Bacon Act of 1931Walsh-Healey Act of 1936Equal Pay Act of 1963Lily Ledbetter Fair Pay Act of 2009Your response must be a minimum of 200 words.