How to solve a system of linear equations in two variables.
How to use algebra to show that two functions are inverses.
How to find the slope between two points.
How to solve a mixture problem when the size difference between the two containers is known.
How to find the midpoint of two points.
How to multiply two binomials together.
How to understand the correlation between radicals and fractional exponents.
How to distinguish between mean, median and mode.
How to evaluate a fractional exponent two ways.
How to move between scientific notation and standard notation of numbers.
How to find the speed of transit when the time of two different legs is known.