Final answer:
The question does not provide enough context to determine how Johnny helped Alexis cheat. Speculative answers are not provided without accurate and specific source material.
Step-by-step explanation:
The provided information does not contain clear context or factual details regarding Johnny helping Alexis cheat in private school. Without a specific reference to an event or situation from a book, show, or real life scenario, it's impossible to determine the content loaded within the question 'What did Johnny help Alexis cheat when she was in private school?'
However, if this question pertains to a particular narrative or a piece of fiction, it would be essential to review the source material to find the accurate answer. Without direct knowledge or a specific reference, it is not advisable to speculate on the course of action Johnny might have taken to help Alexis cheat.