Help anyone please thank u

()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

How to find the exponential function y=ca^x, with points (1,2) and (2,1)

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?