Answer:
5.0121212... is rational because it always does 12121w
sqrt 1000 is irrational because it is 10 sqrt 10
crt 30 is irrational because it stays as a cube root
-5/250 is rational because it is a fractions (all rational numbers can be expressed as a fraction and all fractions are rational)
0.015621... is irrational because it does not repeat in a pattern
sqrt 400 is rational
hope this helps and brainliest please
