Percents and ratios

Ratios

Equivalent ratios

Reducing ratios

Rates

Ratios, fractions, and decimals

Unit ratios and rates

The better buy

Distance, rate, and time

Proportions

Solving proportions

Ratios in geometry

Scale models

Alternate proportions

Percents

Fractions, decimals, and percents

Percents and proportions

The percent equation

Percents over 100%

Finding a percentage

Finding a whole

Percent of change

Sales tax and discounts

Tips

Simple interest.