Question

Hiya !

I need help. . .

Which of the following is a rational number?

$\sf{a) \: \sqrt{20}}$

$\sf{b) \: \pi}$

$\sf{c) \: \sqrt{21}}$

$\sf{d) \: \sqrt{25}}$

(remember no calculator if you're trying to use it)

→ Make an explanation to this. don't cheat!

Answer 1

Answer:

root 25

Step-by-step explanation:

root 25 is 5, and every other number may not be able to be written as a whole number (please give brainliest)

Answer 2

Answer:

D) √(25)

Step-by-step explanation:

√(25) is a rational number because it is a perfect square of 5.