please answer, i will mark brainliest. Thanks!
20pts.
![please answer i will mark brainliest Thanks20pts class=](https://us-static.z-dn.net/files/df0/ebef2f03735e3064e41478bc5b9392e3.png)
Answer:
Only root 81 is natural, as it is the only number that 1. is greater then 0 and 2. it is an integer
please mark it as brainliest!