To solve the problem “56 is what percent of 70?”, Noah uses the double number line below. On the double number line, write the correct numbers at each unlabeled tick mark. Then solve the problem. A double number line with 5 tick marks. The first 2 tick marks are toward the left end of the number line and the other 3 are toward the right end. For the top number line, the tick marks are 0, 7, unlabeled, unlabeled, 70. For the bottom number line, the tick marks are 0%, 10%, unlabeled, unlabeled, 100%.

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.