My number rounded to the nearest tenth place is 6.4. What might my number be

6.35 6.36 6.37 6.38 6.39 etc

Because if you round those up to the tenth you get 6.4

You could keep going for digits after the 100ths place though.

Is it just choose one answer or all because all could be infinite

6 because 4 is lower than 5 so then you need to give it a rest