The table shows the number of bikes sold by a company from June to November of last year . Find the mean number of bikes sold by the company from June to November . Round answer to the nearest hundredth This is the chart
June 225
July 115
August 200
September 135
October 140
November 300

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.