Draw a histogram and a box-and-whisker plot to represent the combined data. Be sure to include the new graphs as part of your final submission 1. How do the graphs of the combined data compare to the original graphs? 2. Compared to the original graphs, do the new graphs make it easier or more difficult to estimate the price of a book?

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Combine like terms to make a simpler expression 3z+z

Ineed with math stuff it involves graphs