Is the number rational or irrational
column a
1. square root of 81 (√81)
2. square root of 84 (√84)
3. square root of 128 (√128)
4. square root of 400 (√400)
column b
a. rational
b. irrational

Answer question above and explain each step : )

Angela rode his bike around a bike trail that was 1/4 of a mile long he rode his bike around the trail 8 * angelo says he wrote a total of 8/4 miles to russell says he's wrong and he actually and says that he actually wrote to my who is corrupt use words and trying to explain how you know.

Can someone me i’m confused. will give brainliest and a whole bunch of points