Final answer:
Page 2 contains personal and educational information, Page 4 includes enlistment and reenlistment details, and Page 7 records emergency data and medical information.
Step-by-step explanation:
Page 2 of an enlisted service record contains information about the service member's personal data, such as their full name, social security number, date of birth, and contact information. It also includes information about the service member's education, civilian occupation, and any previous military service.
Page 4 is known as the Enlistment/Reenlistment Document and contains important details about the service member's enlistment or reenlistment, such as their oath of enlistment, service branch, military occupation, and term of service.
Page 7 is the Record of Emergency Data and includes information about the service member's emergency contacts, next of kin, and any dependents. It also records important medical information and designates beneficiaries for the service member's life insurance.