Answer:
1. Tú comprendes las matemáticas.
2. Nosotros limpiamos la casa el viernes porque hay fiesta el sábado.
3. Ellos escuchan música cuando asisten el concierto en el parque.
4. Yo pregunto si hay tarea.
Tricky, because I can't see the "picture" that the question is asking about. But I think I know what it's talking about. Let's translate the sentence, with the blank: "Mi compañera de cuarto, Jennifer, _________ más tarde que yo." It means, "My roommate, Jennifer, ________ later than me." So, let's fill it in with the word for "get up." "Levantarse" means "to get up." But we have to conjugate it into the third person, singular form. And that would be "se levanta," which is a reflexive verb. Now, we have "Mi compañera de cuarto, Jennifer,se levanta más tarde que yo." It means, "My roommate, Jennifer, gets up earlier than me." If you have any questions about how we conjugated "levantarse," please ask.
No hay un límite. Pero hay un límite de tarjetas de regalo (pienso $500).
In 1536 Spanish Conquistadors conquered <u><em>Peru</em></u>, discovered the flavors of the potato, and carried them to Europe.
#2 is- El es el director de la escuela.
#3 is- I study science and work at a laboratory.