During the bug bash, there was confusion as to whether or not there were more hints available.
Solution open to discussion.
I think there was a PR where the hint button moved to the left side but the suggestions below would still apply.
Possible solution: change the hint button text after the first hint is taken and add a hint counter next to the button.

I guess I had always assumed that the 1/4 2/4 etc. above each hint was sufficient for this.
Shivi brought up a point that it might be uninformative for learners who haven't learned fractions yet
True - perhaps we should make an upstream suggestion to KA on that front too - as those are Perseus rendered annotations.
Could also place the counter within the button.
[ Use a hint (3 left) ]
[ Use a hint (2 left) ]
[ Use a hint (0 left) ]
much better

[ Use a hint (3 left) ]
[ Use a hint (2 left) ]
[ Use a hint (0 left) ]
For the last state, No more hints makes more sense than Use a hint (0 left).
Most helpful comment
For the last state,
No more hintsmakes more sense thanUse a hint (0 left).