Spanish language Q&A Forum

Is this an acceptable construction for "let me know" or does it need to be "déjame que sepa"? 

My understanding is that in Spanish, “un billón” represents a different quantity from “a billion”in English, and this should not be directly translated, but is rather the same as “mil millón.” 

Is my info wrong? Can there be regional variation?

I have seen three words for car: el carro, el automóvil, y el coche. How do I know which to use? Are these regional? I see a lot about Spanish in Spain vs North America.

How to decide to use por (for because) versus porque (as in the example above):

Would it be correct to use porque in these examples?  How would one know which to use (por vs porque)?

Ha salido en la televisión por tener quince minutos de fama.
He's been on TV because he was famous for fifteen minutes.

Va a estudiar medicina por seguir la tradición familiar.
She is studying medicine because it's family tradition.

Here in Puerto Rico, it was suggested to me that one had the flavor of "perhaps" and the other "maybe", but I always forget which is which. 

Hello,

For hours around noon/midnight, in Spanish, is "mediodía" only used for noon sharp? Or is it also used with "menos/y + minutes"? For instance, for 12:30 PM, would you say "Es mediodía y media" or is it best to say "Son las doce y media"?

Same for "medianoche".

HI,

In the example sentences I have now come across 'de la tarde' and 'por la tarde' both meaning 'in the afternoon'.

Are they interchangeable?

Thank you.

Regards,

Colin

The question given is: De los dos películas esa es la peor.

The multiple choice answers are

Out of those two films that one is very bad /  better / bad / worse.

Since película is à “feminine “ noun; Should the question not be De ESAS dos películas esa es la peor. Or perhaps De LAS  dos películas esa es la peor.