Answer: The numbers that are rational numbers are A, C, and F.
Step-by-step explanation: This is because all non-perfect square roots are always irrational. Also, perfect square roots are always RATIONAL. Therefore, the rational numbers of the choices given are
![√(1) , √(4), √(9)](https://img.qammunity.org/2022/formulas/mathematics/high-school/lkchl99ax2by98g21029lwuhk1cim2mcpx.png)