David used the computer a total of 45 hours last week. How many more did David use the computer to play games than to do
homework?

()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

Look at the chart showing the results of a baseball player at bat. which is the probability of getting a hit?

Which rotation about its center will carry a regular hexagon onto itself