Answer:
I WISH I COULD HELP BUT I CANT SORRY
Step-by-step explanation:
I CANT HELP IM NOT IN YOUR GRADE I'm in middle School
Answer:
square root of 81
Step-by-step explanation:

so 9 is rational number.
the rest are irrational number
Answer: C
Step-by-step explanation: You want to find the square root of each number given. The square root of 400 is 20, and the square root of 100 is 10