Answer:
i don't know if you wrote them but according to me some of them are spelled wrong but ill answer them how they should be written as.
Pepe y Pablo estan en mi dormitorio.
Mi coche es amarillo
La fiesta sera en la casa de Alejandro
Emilia esta enferma.
La manzana esta verde.
Explanation:
hope this helps for something. need anything else just write back on here.
If its plural (los/las/ more than 1 thing) its gustan
If its singular(la/el/ 1 thing) its gusta