Solving a quadratic by factoring

Age word problems 3

Level 1 multiplying expressions

Age word problems 2

Age word problems 1

Advanced ratio problems

Introduction to Ratios -

More advanced ratio problem--with Algebra

Alternate Solution to Ratio Problem

Ratio problem with basic algebra

Systems of Equations

Introduction to Ratios

More percent problems

Growing by a percentage

Another Percent Word Problem

Taking percentages

Averages

Integer sums

Algebra: Equation of a line

Slope and Y-intercept Intuition