If you want to say "some of my friends are girls" then: Algunos de mis amigos son chicas.
We always use feminine pronouns (pronombres femeninos) for feminine nouns (sustanitvos femeninos).
You have to say "algunas de mis amigas"
It depends on what you want to say...
If its to indicate something they do then say: "de todos mis amigos, algunas de las chicas [add verb here]. Meaning: From all my friends, some of the girls [verb].
If you need more help, don't be afraid to ask me! ^^ Spanish is my native language
~Hope this helps~ ^-^
To calentar la comida you use el horno
Ok, if you are asking on how much it is,
Es Dos dolares. or en pesos, Es treintaiciete pesos.
or if you are asking like the adjetive, here are a few examples:
Es Bonito. or , Es feo. or, es asombroso!
if im wrong just tell me what i need to answer and i will tell you the answer in the comments below.
but i hope this is what you were looking for!
Answer:
ella va a correr a la biblioteca
Explanation: