below is a scale drawing of the side of a ramp at a skateboard park. the scale from the drawing to the actual ramp is 2 cm to 12 in. what is the area of the actual side of the ramp?

Need this asap if anyone can i would be very grateful. if you could show workings that would really

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.

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?