Can someone please help me with this??

()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

What term makes it inconsistent y=2x - 4

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?