An arrangement of bowling pins has 3 pins in the first row and 12 rows in all. in each successive row one pin is added. what is the explicit rule for this situation, and how many pins will be in the 12th row? explicit rule number of pins in the 12th row an=2+n an=3+n an=2+2n an=3+3n 14 15 16

How can you decide witch operations to use to slice a two step equation

There are 15 plates and each plate is either 7 or 12 inches diameter. which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

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.