Yea, it's basically a review of algebra and geometry, so you'll probably do very well. Here's some specifics that I remember:
*Composition functions and how to compute them. Example of a composition function is cos x^2, since cos x is a function and x^2 is also one.
*learning how to graph functions by hand, and how to shift them up, down, left, right given an equation. Example: y = x^2 + 5 ... you take the basic parabola x^2, which has it's vertex at the origin, and you shift it up 5 units so that its vertex is at (0, 5)
* The conic sections (parabola, circle, ellipse, hyperbola) and how to graph them and what their equations are.
* Logranithms and exponential functions
*lograithmic expansion and contraction (ex: log 5 + log 7 = log 35, because 7*5 is 35 and they have the same base)
* basic series
That's mostly what comes to my mind. You won't get into any actual calculus in pre-calc...it's all just algebra and geometry that you will need to understand when you do get to calculus. If you want to learn a few things about actual calculus itself, I can give you a few starting points. I can't think of any websites off the top of my head, but I'm sure you could do a google search and find some.