PRECALCULUS or PreAdvanced Placement Calculus?

Well, that was hard to follow, but I'm guessing that it was copied from a college prospectus. I personally do not believe that there is any such thing as precalculus or prealgebra, or any other specific preparation for "specific topic" mathematical training.

You can use and understand calculus if you are reasonably adept with high school math. I personally did very well with calculus (in fact I found it fun - really!). My regular math "history" at school was pretty ordinary.

I'm not sure if there is a "Calculus for Dummies", but if there is, and my math was not too bad, I'd start there.

Details:

precalculus: "Precalculus is the preparation for Calculus. The course approaches topics from a function point of view, where
appropriate, and is designed to strengthen and enhance conceptual understanding and mathematical reasoning used
when modeling and solving mathematical and real-world problems. Students systematically work with functions and their
multiple representations. The study of Precalculus deepens students' mathematical understanding and fluency with
algebra and trigonometry and extends their ability to make connections and apply concepts and procedures at higher
levels. Students investigate and explore mathematical ideas, develop multiple strategies for analyzing complex
situations, and use technology to build understanding, make connections between representations, and provide support
in solving problems.
Grade Placement: 11-12 "

PAP precal: "This course covers the concepts studied in Precalculus. Content is studied in greater depth and may include additional
topics.
Recommended Grade Placement: 11 "

would PAP precal be harder or not? Because the description makes it looks only SLIGHTLY harder. Thanks :)

Back when I was in high school, it was called the "Honors Program."  Very few of us stayed in the program for all of the courses offered all four years.  The advanced placement courses are indeed more difficult.  They move at a faster pace and cover more topics.  There is also a greater expectation of homework.

  I suggest you speak with your counselor, or previous math teacher.  They know your abilities, and can recommend the course best suited for you.