A 33 foot pipe is cut into three sections. The longest section is three times as long as the shortest, and the middle sized section is 3 feet longer than the shortest. Complete the diagram by giving a and B as expressions involving X. Do not solve the problem. P = 33 feet (P is the length of the entire pipe)

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.