Hello, thank you for taking the time to post your question!
For the unit rate you want to determine how many inches are covered per minute … so that means dividing
2_2/3 / 5
I would start by converting the 2_2/3 over into an improper fraction of 8/3
Then when you divide by 5 you should get the final rate of
(8/3) / 5 = 8/15 inches per minute
I hope that helps get you moving in the right direction! Feel free to reach out if you have any additional questions beyond that :)