I used solely `$` to write the dollar sign at https://math.codidact.com/posts/288038. As you can see, the `$` rendered the dollar sign perfectly under the heading GOLD BALL DRAW.
But under GOLD BALL JACKPOT DRAW, some `$` failed to render as a dollar sign, while some $ did.
#### On the same post, why does `$` sometimes work, and sometimes fail?