Which of the following number(s) is a perfect square(s)? select all that apply. 1 2 4 5 9 11 25 36 45 81 144 225 400

1: the square root of 1 is one.

4: the square root of 4 is 2.

9: the square root of 9 is 3.

25: the square root of 25 is 5.

36: the square root of 36 is 6.

81: the square root of 81 is 9.

144: the square root of 144 is 12.

225: the square of 225 is 15.

400: the square root of 400 is 20.

$9.89

step-by-step explanation:

9.90 = p x .06 x .25 (3/12 changed to a decimal)

9.90 = p x 0.015

9.90 - 0.015 = p

9.89 = p

21

jk it's 20

step-by-step explanation: