Leora is finding the length of a horizontal line segment on a coordinate grid. She subtracted the x coordinates and got -17.5. What is her next step?
O Add 17.5.
Take the absolute value of -17.5.
Add the y-coordinate values
Round up to -17

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.