Answer:
>=0 and <=30000
Explanation:
The above logical expression makes sure that entries in the field must fall from 0 to 30000. including the numbers set as range.
>=0 ensures valuest from zero and above
<=30000 ensures values from 30000 and below
Therefore the ranges of 0 to 30000 are accurately set and no value outside of the boundary will be accepted into the field.
