Highlight cells F2 through F5, and then hold down the control key, and highlight H2 though H5. Make sure you don't get 3 columns highlighted. The two columns need to be highlighted when you do this. You should see a plot of your 4 points in the sample area. They should be nearly in a straight line.
Objects are rectangular areas, often outlined in blue or black.
You can use these to move the object around. There are various options to label your plot and make it pretty. Experiment with them if you have time. It should be very nearly a whole number. Write the value you got, and your guess at the whole number it should be below the entries on your data sheet.