this is not coppied correect.
but the sentence should read
"Para el mejor vuelo tienes que haces estas dos cosas: hay que vestirse cómodo y tienes que llevar capas."
the correct answer is hacer, instead of haces.
next time be careful with what you copy
1. Este
2. could be any of the three, but I’d go with esta
3. Esa
4. Aquella
These answers depend on how close or far the objects being described are from you, so I’m not sure if there’s any more context.
Sorry i don’t understand that