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Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

Me with this one question, and i'll upvote the brainliest answer