Jessica has a balance $4,500 on her credit card with a 22% interest rate. How long will it take her balance to double?

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²

Standard deviation of 19,29,21,22,23

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.