5. toby collects data and makes a bargraph about his classmates' pets. he finds that 9 classmates have dogs,2 classmates have fish, 6 classmateshave cats, and 3 classmates havegerbils. what pet will have the longestbar on the bar graph?

If you draw a graph on a paper, you will have dogs, cats, gerbils, and fish. 
   
    l
    l
    l
    l                 l
    l                 l 
    l                 l                           
    l                 l                                  l
    l                 l                l                 l
    l                 l                l                 l
DOGS     CATS       FISH     GERBILS

As you can see, there are more dogs than other pets.