Which of the following list of values contain rational numbers only ?

9514 1404 393
Answer:
-√81, (√7)/(√7), 4.16666...
Step-by-step explanation:
The irrational values in the first three choices are ...
The values in the last choice, expressed as integers or fractions are ...
-9, 1, 25/6
The last list is all rational numbers.