What is the square root of 9 Then cube it?

27

The square root of a number is "the number times itself that equals the original number". The square root of 9 = the number times itself that equals 9. In this case it is 3 (3 x 3 = 9). To cube a number, multiply the number by itself two times. The square root of 9 cubed would be 3 x 3 x 3, or 27.