It can be.
7 is a non-perfect square and, being an integer, it is rational.
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Perfect square roots are square roots that have a whole number that can go into it perfectly. Nonperfect square roots are square roots that have decimal numbers going into it. Example: Perfect Square Root: 144- Square Root: 12 Nonperfect Square Root: 24- Square Root: About 4.89
The square root of 25 is 5 which is a rational number * * * * * Or -5, which is also rational.
The square root of 32 is not a rational number
The square root of 64 is 8 which is a rational number
It is neither but if you mean the square root of 100 then it is 10 which is a rational number