Tom, scott and dawn sold cookies at the school fair.
tom had 90 cookies and sold 60% of them.
scott had 150 cookies and sold 2/3 of them.
dawn sold 46 cookies.
what percentage of the cookies sold were sold by dawn?

Which of the following is true for the relation f(x)=2x^2+1

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.

Which graph has a rate of change of zero