What is 400 to the nearest 10

()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

In the diagram, gef and hef are congruent. what is the value of x

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left