Jenny spent $180 on 2 host as and 13 ivy. stefan spent $192 on 12 host as and 4 ivy. what’s the cost of each hosts and ivy?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

The length of a rectangular piece of land is 92 yards more than three times its width. the perimeter is 760 yards. find its dimensions.

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.