The title of the video below could help you in how to solve for the Potential Energy and Kinetic Energy. Very short and simple explanation.
Kinetic Energy and Potential Energy by The Organic Chemistry Teacher.
Or you can study the sample problems below:
The formula for KE has two ways to solve the problem. It's up to you if you want to use Solution 1 where the fraction became a decimal by dividing 1 over 2 (it will depend on the teacher if they approve of this method) or use Solution 2. Whichever feels easier for you.
Dont forget the GRESA method your teacher is asking you to apply in answering.