Rotational symmetry. Because you can rotate it and put a line through it and it would all look the same
Answer:
you have to add them together
Set up a proportion
3 coins:8 notes and then the other one 24 coins : x (unknown notes)
they have a relationship so we can set them equal to each other.
3/8=24/x cross multiply: 8 * 24 = 192
Now divide that by 3: 192/3 = 64
So there are 64 notes in the bag
The diamond is 1 the square is 6 and the triangle is 7
