Pat races at 10 miles per hour, while kim races at 9 miles per hour. when they both ran in the same long-distance race last week, pat finished 8 minutes ahead of kim. what was the length of the race, in miles? briefly describe your reasoning.

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.