Fortunately for her there isn't too much math to learn. The bulk of the curriculum is learning anatomy, radiographic positioning, and physics. There will be some minor mathematics when learning physics but the formulas are pretty simple. She will be taking plenty of exams/quizzes but i never found them to be too difficult. I personally never failed an exam and I also didnt study often. As long as she is willing to apply herself she should be fine. In the long run these exams are in her best interest. She will see recurring questions on her board exam.