Your leads should go over what’s important but get every point possible leading into radar is one you’ll hear a lot, which is true, my class had someone pass with a 70.54 so points can save you. For radar: there’s not really a secret formula for success. You show up and run the problems, ask questions on stuff you don’t understand and try not to make the same mistakes over again. If you can understand the radar scope and what situations require what solutions you’ll be fine and should be able to pass.