Answer:
No, No tengo, Tenemos que Comprar.
Explanation:
This means that you don't have any, you have to buy some.
Your mom asks you if you have beans for math class, and you say that you don't, that you have to buy some.
Estamos: we are
estas: you are
estan: they are
The question says where are Maria and Adela? You should change “Maria and Adela” to they, do the third option is correct.
The first one in English says <span>I just like pizza.
The second one says s</span>he end up buying a pencil.
The second should say She ends up buying pizza, not she end up buying pizza.
The first should sat I like pizza, not I just like pizza.
These are my two guesses. Sorry if it's wrong