“I am from America and I am 15 years. Can you try to guess my gender?”
I’m assuming theres more information to answer this question. I hope this helps though.
A ella no le gusta los deportes
I assume you mean the verb conjugation of the present perfect? It's used to talk about things that started in the past, but are still going on right now (in the present) or something that happened recently.
To form it use the past participle of haber + the past participle of another word. For example:
He visto las montañas de Perú
(I have seen the mountains of Peru)
Hemos vuelto para comprar la leche
(We have returned to buy milk)
Habéis cantado muy bien
(You have/You've sung very well)
If you need more info, here is a good place: http://www.spanishdict.com/guide/spanish-present-perfect-indicative
Nico y Marga planean unas vacaciones en Lisboa. Allí les esperan sus dos amigos. Pero la extraña desaparición de éstos será el comienzo de multitud de aventuras, tanto en tierra como en alta mar. La búsqueda de un tesoro escondido en un barco fantasma led pondrá sobre la pista de un sorprendente hallazgo.