Adam runs 10 feet per second.
Brooke runs 412 feet in 44 seconds.
Jessica runs 1 mile in 381 seconds.
Jake runs 754 feet in 1 minute.

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.