Please answer this question, we have a test on it tomorrow. I will probably be posting more. I will mark brainiest IF you get it correct first.

()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

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.

Find the volume of the solid obtained by rotating the region enclosed by the curves y=1x and y=7^-x about the x-axis. (use symbolic notation and fractions where needed.) volume =