Hi. I’ve been using Desmos all year. I’m a novice when it comes to the computation layer. I think there may be others out there that want to do something simple like I’m going to describe. It is something I could use for a typical practice exercise.
What I want to do is this:

Ask a question with a Note and a Sketch with a background picture.

Provide a math input answer box. When the answer is correct, give a thumbs up.
If it is incorrect the first time, give the thumbs down and say something like “You have two more attempts before you can view the solution.”
If it is incorrect a second time, “You have one more attempt before you can view the solution.”
If it is incorrect a third time, “You may continue to attempt the correct response, or you may look at the solution.”
 At this point, let (what I show in my example as “hint please”, but it should say, “solution”)… let the “solution” button appear, and allow the student to see a sketch identical to the first, except with the solution written on it.
I figure this can’t be that difficult to do. I know what I want to happen, but I’m stuck.
https://teacher.desmos.com/activitybuilder/custom/60e3b7eeefaf5cb85d43eb27