Hi ernestpauld,
Use COUNT function. Refer below query.
SELECT COUNT(*) Total FROM tblenrolledstudents
WHERE stud_religion='Islam' and grade_level='Grade 3' AND stud_gender='F'
AND stud_nationality NOT IN('Algerian','Bahraini','Comoran','Djiboutian','Egyptian','Iraqi','Jordanian','Kuwaiti','Lebanese','Libyan''Moroccan','Mauritanian','Omani','Palestinian','Qatari','Saudi Arabian','Somali','Sudanese','Syrian','Tunisian','Yemeni','Emirati')
AND f_nationality NOT IN('Algerian','Bahraini','Comoran','Djiboutian','Egyptian','Iraqi','Jordanian','Kuwaiti','Lebanese','Libyan','Moroccan','Mauritanian','Omani','Palestinian','Qatari','Saudi Arabian','Somali','Sudanese','Syrian','Tunisian','Yemeni','Emirati')
OR m_nationality NOT IN('Algerian','Bahraini','Comoran','Djiboutian','Egyptian','Iraqi','Jordanian','Kuwaiti','Lebanese','Libyan','Moroccan','Mauritanian','Omani','Palestinian','Qatari','Saudi Arabian','Somali','Sudanese','Syrian','Tunisian','Yemeni','Emirati')