The question I am asked most often is: How do you write a college admissions essay? or, Where do you start?
The first thing to do would be to look at the prompt given and think of a way to answer the university in a way that not only relays your interests but also how you are a unique individual who would be an excellent addition.
How do you study for the GED?
First try a free practice test online, there are many, then find a practice test book and work on completing the test within the time limit.
How do you study for the SAT reading section?
I recommend using collegeboard.org to find sample questions and then I would work individually with the client on critical analysis and reading skills.