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Mathematics 15 Online
OpenStudy (anonymous):

Each Sunday, Mario weighs himself. Here are his weight changes over a 4-week period http://static.k12.com/calms_media/media/243000_243500/243123/1/6cfa8ac3dff9b468270f7d94a9c8bde420104df9/VHS_PA_L2_S1_02_09_MUT_Q10.gif

OpenStudy (anonymous):

How much has Mario’s weight changed over the entire 4 weeks? A. 5.4 pounds B. –4.1 pounds C. 3.2 pounds D. –3.9 pounds

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