I need help writing SQL statements the questions E, F, G at the bottom. Data included. using Putty Sqlplus

NEED SQL FOR E,F, AND G

Name Null? Type DEPTNAME DEPTELOOR DEPTPHONE EMPNO NOT NULL CHAR (15) NOT NULL NUMBER (38) NOT NULL NUMBER (38) NOT NULL NUMBER (38) Name Null? Type NOT NULL NUMBER (38) EMPENAME EMPSALARY DEPTNAME BOSSNO CHAR (10) NUMBER (7) CHAR (15) NUMBER (38) EPTNAME DEPTELOOR DEPTPHONE EMPNO anagement arketing Accounting Purchasing Personnel 2001 2002 2003 2004 2005 EMPNO EMPNAME EMPSA LARY DEPTNAME BOSSNO 1 Alice 2 Ned 3 Andrew 7 Brier 8 Sarah 9 Sophie 4 Clare 5 Todd 6 Nancy 75000 Management 45000 Marketing 25000 Marketing 43000 Purchasing 56000 Purchasing 35000 Personnel 22000 Marketing 38000 Accounting 22000 Accounting 1 5