It's an informal way to refer to a woman named "Sara". It means 'It's Sara'
In informal Spanish (not recommendable), some people say:
La Sara se vino caminando (informal Spanish) - Sara came walking
"¿De dónde es la profesora?" in Spanish means "Where is the teacher from?"
it means "my sister is the"
"Tu es en la casa" is incorrect grammar as it mixes French and Spanish. In French, "tu es" means "you are," and in Spanish, "en la casa" means "in the house." The correct phrase in either language would be "tu estás en la casa" in Spanish or "tu es dans la maison" in French.
¿Es la madre de tu prima? in Spanish means "Is she the mother of your cousin?" in English.
La vida es buena.
"Es la una en punto" means "It's one o'clock exactly" in Spanish.
"Es la hora de clase" in Spanish means "It's time for class" in English.
la clase de el arte es facil means the art class is easy in spanish
it must be "eres la luz". and that means "you are the light".
La hierba es means: The grass is (hierba can refer to grass on a lawn or grass as in marijuana).
Depends on context, but most likely "The eraser is red" Could be The tire is red.
It means "What is the date of Christmas?" The answer is December 25th, or in Spanish el 25 de diciembre.