What is 9 x 5?

The correct answer is 45 because multiplication is a method of repeated addition. In this case, 9 multiplied by 5 implies adding the number 9 a total of 5 times:

9 + 9 + 9 + 9 + 9 = 45.

Additionally, when you visualize this multiplication as an area of a rectangle with one side measuring 9 units and the other side measuring 5 units, you also arrive at the total area of 45 square units. This reinforces the result of 9 multiplied by 5.