00:56duration 56 seconds

Translating a phrase into a two-step expression

This video demonstrates how to change a description in words into an algebraic expression.

01:04duration 1 minute 4 seconds

Variable expressions as inputs of functions:…

Variable expressions as inputs of functions: Problem type 1

Shows how to input an expression in place of the orignial variable input, and then simplify.

00:50duration 50 seconds

Finding a percentage of a whole number without a…

Finding a percentage of a whole number without a calculator: Basic

Just some tricks to break down a percentage if your phone battery goes dead and you don't have a calculator.

05:09duration 5 minutes 9 seconds

Solving a Formula for a Specified Variable, Part 2

A second example of how to solve a formula for one of its variables.