Answer:
C#
if(user_grade >=9 && user_grade <=12)
{
 Console.WriteLine("In Highschool");
}
Python
if user_grade >= 9 & user_grade <= 12:
 print("In Highschool")
Java
if(user_grade >=9 && user_grade <=12)
{
 System.println("In Highschool");
}
Step-by-step explanation: