Finding the Original Price when given the price with tax (or tip) and the percent of tax or tip
10:53
Converting Fractions, Decimals and Percentages
6:37
Finding the original price given the sale price and percent discount
10:12
Finding the Area and Circumference of Circles
6:29
Building a GaGa Ball Pit and the math behind it.
16:15
Você consegue encontrar X? - Pergunta do exame de admissão de Harvard
14:22
Solve 2 to the x = 9 , what is x=? Can you solve this type of Algebra Equation?
6:33
The Basics of Ratios
21:56