Suppose you have a bag with 25 letter tiles in it and 3 of the tiles are the letter k. If you pick a letter tile at random from the​ bag, the probability that it is the letter k is 3/25. Suppose another bag has 400 letter tiles in it and 136 of the tiles are the letter k. Write the probability of picking a tile that is the letter k as a fraction and as a percent. From which bag are you more likely to pick a tile that is the letter ​k? ​ PLEASE PLEASE HELP ME

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.