Plz anyone help!! Geometry is killing me i'm so confused with this, giving 20 points! The first photo is the question, the second one is the graph needed for it

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.

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

What is the length and width of a 84.5 square foot rug? will mark