A book is used for reading, and a fork is used for eating. This analogy shows a relationship of function.
Multiplication is the operation used. 5 multiplied by 6 equals 30.
The square, triangle, and diamond are all polygons (shapes with straight sides), while the circle is not a polygon.
Dogs commonly wag their tails when they are excited, and bones are often associated with their excitement.
The sequence increases by 3 each time. After 12, adding 3 gives 15.
