Incendium's resources assumes you know up to the Advanced Functions and Data Managemnt courses in Ontario, Canada.

This includes:

• Polynomial equations (long division, factoring, factor theorem, remainder theorem, rational root theorem, inequalities)
• Logarithms (laws, equations, solving for unknowns)
• Trigonometry (identities, double angle, addition, subtraction, half angle, triangle based formulas, sine law, cosine law)
• Basic probability (factorials, permutations, combinations, basic distinguishability, complementary counting, constructive counting, case work, binomial theorem, pascal's triangle)

If you are not familiar with any of these topics, I recommend heading over to Khan Academy or other free resources to get a decent understanding of the topics above.