Answer:
220 ways
Step-by-step explanation:
The order matters because there's going to be a first, second, and third place.
So, 12P3=12!/(12-3)!*3!=12!/9!*3!=12*11*10*9!/9!*3!=12*11*10/6=220
Therefore, 220 ways
Answer:

Step-by-step explanation:
Similar shapes must have corresponding sides in a constant proportion. Therefore, we can set up the following equation and solve for
:
(divide corresponding sides)

Answer:
3,8
Step-by-step explanation: