Please Explain adn show your work for these questions

Given the database shown below with relations EMPLOYEE, DEPARTMENT DEPT_LOCATIONS, WORKS_ON, PROJECT, and DEPENDENT. EMPLOYEE Ssn Fname MinitLname John FranklinT Wong 333445555 1955-12-08 638 Voss, Houston, TX M 40000 888665555 5 Alicia JenniferS Wallace 987654321 1941-06-20 291 Berry, Bellaire, TX F 43000 888665555 4 Ramesh K Narayan 666884444 1962-09-15 975 Fire Oak, Humble, TX M 38000 3334455555 Joyce A English 453453453 1972-07-31 5631 Rice, Houston, TX F 25000 3334455555 AhmadV Jabbar 9879879871969-03-29 980 Dallas, Houston, TX M 25000 9876543214 James E Borg 888665555 1937-11-10 450 Stone, Houston, TX M 55000 NULL Bdate Address Sex Salary Super_ssn Dno B Smith 123456789 1965-01-09 731 Fondren, Houston, TX M 30000333445555 5 J Zelaya999887777 1968-01-19 3321 Castle, Spring, TX F 25000 987654321 4 DEPARTMENT DEPT LOCATIONS Dnumber Dnumber Mgr _start_date 1988-05-22 1995-01-01 1981-06-19 Dlocation Houston Stafford Bellaire Sugarland Houston Dname Research Administration Headquarters Mgr ssn 333445555 987654321 888665555 4 4 5 5