Answer:
[tex]\frac{1}{4}[/tex] inches
Step-by-step explanation:
I think your question is missed of key information, allow me to add in and hope it will fit the original one.
Please have a look at the attached photo.
My answer:
Given the information in the photo, we know that:
=> the difference in length between the length of string she used most often and the length of string she used least often is:
= [tex]12\frac{1}{2}[/tex] - [tex]12\frac{1}{4}[/tex]
= [tex]\frac{1}{4}[/tex] inches
Hope it will find you well