Respuesta :

tiannavincent9p1wcjf

Answer:

3

Step-by-step explanation:

3 plates per stack

divide 4 by 4 to get one and 12 by 4 to get 3

kayla2359

Answer:

3:1

Step-by-step explanation:

A unit rate is a ratio between two different units with a denominator of one.

12/4=3

4/4=1

so the answer is 3:1