9. Write a SQL query to retrieve the suppliers who supplied the quantity of products more than 50 in one bill(order). (5 points) 10. Write an SQL statement to find the employees who have the job position is Professor. (5 points) 11. Write a SQL query to retrieve the customers who ordered after 1st of October, 2022. (5 points) 12. Write a SQL query to find the employees first name and last name working in each department. (5 points) 9. Write a SQL query to retrieve the suppliers who supplied the quantity of products more than 50 in one bill(order). (5 points) 10. Write an SQL statement to find the employees who have the job position is Professor. (5 points) 11. Write a SQL query to retrieve the customers who ordered after 1st of October, 2022. (5 points) 12. Write a SQL query to find the employees first name and last name working in each department. (5 points)