Answer: The coach determines that Romeo needed to run 66.8 feet.
Explanation:
Since we have given that
Distance from third base to home plate = 88.9 feet
Distance that away from third base when he was tagged out = 22.1 feet
According to question, the equation that can be used to determine how far he needed to run to get to home plate is given by

Hence, The coach determines that Romeo needed to run 66.8 feet.