I'm on my phone, trying this. It's a question about how many people are in the air right now.
- when I tap on a factor, I can edit the slider, but it doesn't do anything.
- when I tap another factor, the previous editor stays in place.
- how do I choose my factor?
- where do I actually do the multiplication?
- where do I check my answer?
- why do the factors have "grab icons" (the six dots)? Why would I drag one?
Etc.