SQL Multiple Conditional Queries

Which woman designers have an annual salary over $22,000?

Exampes
1.SELECT LASTNAME, SALARY
FROM EMP
WHERE SALARY > 22000
AND JOB = 'DESIGNER'
AND SEX = 'F'

Who makes more than $40,000 or is a manager?
2.SELECT LASTNAME, FIRSTNAME, SALARY, JOB
FROM EMP
WHERE SALARY > 40000 OR
JOB = 'MANAGER'

3.Which Filed Rep makes more than $2,000 in commissions or who has an education lever higher then 18?
SELECT LASTNAME, JOB, COMM
FROM EMP
WHERE (COMM > 2000 AND JOB = 'FIELDREP')
OR EDLEVEL > 16


4.SELECT LASTNAME, JOB, COMM
FROM EMP
WHERE COMM > 2000 AND (JOB = 'FIELDREP'
OR EDLEVEL > 16)