Answer:
los primeros trenes salen a las 6:15 y en fines de semana o días festivos a las 7:30
last one
This isn’t an equation— equations require an equal sign and a variable of some sort on the other side of that said equal sign. Sorry.
The third option.. Quieren
the appropriate defintite article for mochilas is las
las mochilas
Yo-voy
ella (and) èl-va
Tú-vas
nosotros-vamos
ellos-van