These are the high temperature for one week in july . sunday 74
monday 75
tuesday 80
wednesday 76
thursday 75
friday 81
saturday 78

whats the mean high temperature for this week

A. 74
B. 75
C. 76
D. 77
E. 78

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.

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?

What is the solution to the equation e3x=12? round your answer to the nearest hundredth