There is a image for the question. i have no clue how to solve 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

Opposite angles in a parrellelogram are

What is the sum of the first 8 terms of the geometric series