Mathematics, 30.06.2019 00:00 angelashaw449

Based on the graph, how many students in a class of 360 students would be expected to choose hip-hop or rock as their favorite type of music? rock 20% hip-hop 40% and 30% country i know they all total out to be 90 not sure how to get the answer answer choices are 240/80/180 i actually got 180 for the answer but not sure

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Based on the graph, how many students in a class of 360 students would be expected to choose hip-hop...