SHORT ANSWER Write each of the numbers 1, 4, 9, 16, and 25 as a base raised to the
second power. Explain why these numbers sometimes are called perfect squares

because their principal square roots are also positive integers, square roots of numbers which are not perfect squares like 2 are irrational

step by step:

The square of a number is the number you get ehen you multiply that bumber by itself. so if n is a number then nxn = n2 is the 'square of n' it is called that because the area of a square whose edge lengh is n units is n2 square units

perfect square numbers are the numbers which are ths squares of the positive integers

i pretty sure it is

i think it is 18

step-by-step explanation: