Which of these is a unit rate?

1) 18 students in a class
2) 18 students in 18 chairs
3) 18 students in 6 rows
4) 18 students in 2 reading groups

Respuesta :

Answer:

18 students in a class

Step-by-step explanation:

18 unit of students is defined to 1 unit of class. Therefore it is a unit rate.

Answer:

18

Step-by-step explanation:

Because 18 is a unit rate