"Estudiar en la sala" means "to study in the living room" in Spanish.
la sala means "a room"
"¿Quién va a la fiesta?" means "Who is going to the party?"
"Sala de estar". In Spain (I don't know in other hispanic countries) we say too commonly "Salón".
La sala callada
La sala de estar.
If you mean sala, then it's room
Bienvenido a la sala cinco
She goes to the blackboard and writes
The family room.
My room. "La sala" is usually thought of as a living room, lounge, parlor, or waiting room. Usually, when you speak of "my room", you would mean your own bedroom, so "mi habitación", or "mi cuarto" would be more common.
To say "AM" or "in the morning" in Spanish, you'd say "de la mañana". You could say "Son las ocho de la mañana," meaning "It is 8:00 AM" or "It is 8 in the morning".