Sheldon is making a steak for dinner. at first, the steak is at room temperature, 72°friday. then, he places it on the grill, where it's temperature increase at a rate of 3 1/5°f for each minutes. after ten minutes, he removed the steak from the grill and let's it cool for 7 minutes on the counter. while it is siting on the counter, it's cool at a rate of 4 2/7°f each minutes. what was the net change in the temperature of the steak from before it was cooked and when it was served?

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.