Erin finds that an actual distance of 145 miles in her city is equivalent to 38 of an inch on a map. The map includes a legend that lists the number of miles represented by 1 inch. How many miles per inch are listed in the legend?

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.