To find out how many students stay for afterschool programs, we can add the numbers in the "Afterschool Programs" column for each grade.
- 10th grade: 10 students
- 11th grade: 6 students
- 12th grade: 7 students
Now, let's calculate the total:
10 + 6 + 7 = 23
Therefore, the total number of students who stay for afterschool programs is 23.