Algebra
Solving Rational Equations Video
Khan Academy link  can view the entire topic in multiple videos that follow this one. This particular video is 9 minutes long.
https://www.khanacademy.org/math/algebra2/rationalexpressionsequationsandfunctions/solvingrationalequations/v/solvingrationalequationspjmt
Exponential Functions Video
Video also contains links to specific exponential problems.
https://www.youtube.com/watch?v=VyM7Lk1Z5AI&list=UU9SPN6qaM0DB455DrWAdpA
Piecewise Functions Graphs
Prof Rob Bob  discusses Domain and Range in addition as to how to graph
https://www.youtube.com/watch?v=Vo9Y2X2wGbo
Inverse Functions Site
http://www.coolmath.com/algebra/16inversefunctions/05howtofindtheinverseofafunction01
Combining Polynomials
Contains links to all operations on polynomials.
http://www.coolmath.com/prealgebra/15introtopolynomials
Factoring  Many videos
Videos for factoring all types of expressions
http://mathvids.com/topic/1algebra/major_subtopic/8/lesson
Relations and Functions
This is the awesome Professor Rob Bob explaining Relations vs. Functions  lots of vocab explanation.
https://www.youtube.com/watch?v=oFwRPH0JrFY
Function Notation and Evaluation
Prof. Rob Bob  Word Problem with a function and explanation of evaluation of functions.
https://www.youtube.com/watch?v=s4axeIDu4wU&index=18&list=PLGbL7EvScmU7ZqJW4HumYdDYv12Wt3yOk
Solving Linear Systems of Equations
Go through all lessons to see how to solve a system of equations in two variables using various methods.
http://www.coolmath.com/algebra/122x2systemsofequations/index.html
Simplifying Radicals
http://www.mathwarehouse.com/algebra/radicals/howtosimplifyradicalsvideotutorialwithexamples.php
ACT
Geometry
Regular Polygons
This is a great summary of "everything" about regular polygons: angles, area, apothem, etc. Enjoy the review!
http://www.mathsisfun.com/geometry/regularpolygons.html
Trig Ratios
SOHCAHTOA
http://www.mathsisfun.com/sinecosinetangent.html
Proof Practice
Interactive Tool for Practicing Proofs
http://feromax.com/cgibin/ProveIt.pl
Working Proofs
Videos of various proofs in Geometry worked.
https://www.khanacademy.org/math/geometry/geometryworkedexamples/v/cageometrymoreproofs
Law of Sines
Law of Sines  Do not worry about ambiguous case for our test
https://www.mathsisfun.com/algebra/trigsinelaw.html
Law of Cosines
Law of Cosines Examples
https://www.mathsisfun.com/algebra/trigcosinelaw.html
Pythagorean Theorem
http://www.mathwarehouse.com/geometry/triangles/howtousethepythagoreantheorem.php
Probability
Interactive website with background on probability and basic problems  takes about 5 minutes to complete lesson.
http://www.learnalberta.ca/content/mesg/html/math6web/index.html?page=lessons&lesson=m6lessonshell19.swf
Rigid Transformations
Series of videos and quizzes on rigid transformations, including rotation, reflection and translation
https://www.khanacademy.org/math/geometry/transformations/exploringrigidtransformations/v/rotatingsegmentaboutorginexample
Zoom Factor
Video on zoom factor  their terminology is "scale factor"
http://www.virtualnerd.com/tutorials/?id=PreAlg_06_01_0013
PSAT
The Basics of Sequences
Good basic information about sequences  notation and determining rules
http://www.mathsisfun.com/algebra/sequencesseries.html
Simplifying Radicals
http://www.mathwarehouse.com/algebra/radicals/howtosimplifyradicalsvideotutorialwithexamples.php
Sequences  determining a rule
This is complex  no doubt about it  but read through and work out how they do the bottom problems. It may click for you. Requires some memorization about how to look for the rule.
http://www.mathsisfun.com/algebra/sequencesfindingrule.html
Exponent Rules
About an eight minute video on rules of exponents
http://www.mathwarehouse.com/algebra/exponents/lawsofexponents.php
