Answer:
16. B
17. B
18. A
Explanation:
So, for #16, we are going to look into the square root of 3. As we know, the square root of the on the bottom of a fraction automatically leads to a number being irrational.
#17 is a little different. As you know, the square root of 100 is 10. But making it 110 gives us an answer of 10.49, so it is irrational.
#18 is just a plain fraction, so it is rational.
Hope this helps, have a great day.