For the square, find coordinates for b without using any new variables. (d, 0) (0, c) (c, 0) (0, d)

Personally, i think the games do because it's actually them controlling it. this might cause them to think it's okay to do it for real. as for animated movies i think they are mostly fine because they're animated. also, animation has come a long way causing animated movies to become more real but 30 years ago this wouldn't be as big of a problem as today.

Because of its aerodynamic shape

Iwould say asking questions. even over the small things because then you can get an answer that should you to understand more.