Respuesta :

Hi there!  

The unit rate of students to computers is  

8 students per computer (or 8:1).  

Since 72 / 9 = 8, the answer is 8 students.  

Hope this helped!

1:8 with computers being 1 and students being 8. 9 divided by 9 is 1 and 72 divided by 9 is 8.