Sean W. answered 01/22/17
Tutor
5.0
(50)
Biomedical Engineer from Vanderbilt
Hi Nathaniel,
We are given than Mark has 2 pencils and Rachel has 3 pencils.
Keeping in mind that a ratio is a comparison of whole numbers, the ratio of how many pencils Mark has to how many Rachel has is simply 2 pencils to 3 pencils, or 2 : 3.
Hope this helps!