Martin-Gay Prealgebra Ch 1 Ex 7
Award-winning instructor and best-selling author Elayn Martin-Gay walks you step-by-step through every exercise in each Chapter Test (Prealgebra 6e ©2010).
More algebra help? There's an app for that: http://bit.ly/AlgPrepiPhone
Go to iTunes to check out the AlgebraPrep app series by Elayn Martin-Gay for iPhone/iPod touch (iPad too)!
Millions of students are learning math with MyMathLab. Are you one of them? http://bit.ly/mymathlab
Elayn Martin-Gay firmly believes every math student can succeed--especially with the right learning tools. http://bit.ly/elaynmartingay