Carla and four of her friends went to the movie theater and found that there were only five seats left in the theater. How many different ways can Carla and her friends sit in these five seats? A. 24
B. 120
C. 256
D. 396

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.