Unit+7Ratio+and+rates

http://www.brainingcamp.com/resources/math/rate/index.html http://cemc2.math.uwaterloo.ca/wired_math/English/grade7/index.html http://www.math4children.com/Grade5/quizzes/Ratios,%20proportions,%20percents/Equivalent_rates_rates_per_unit/index.html