Respuesta :
In this exercise we have to use the knowledge of size to calculate the size of the pen, so we have:
[tex]15 \ feet \ long[/tex]
As we want to calculate the size, we will only need its length, which will correspond to:
[tex]5*3=15[/tex]
Now calculating its wide we find something close to:
[tex]2*3=6[/tex]
See more about size at brainly.com/question/25893267