A box of pens is $1.40, while highlighters are $2.30 per box. A company normally uses 15 times as many pens as highlighters and has a budget of $1165 for these supplies. If x is pens and y is highlighters, write the ordered pair (x, y) that shows how many of each the company should buy.

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.