Answer:
you can use this app it might help. photo math. it's not just for math
Answer:
Both. Depends on the situation.
Explanation:
"Ti" would be you as the object. Mainly after prepositions, "ti" is always used (por ti, para ti, a ti, etc.). "Te" is also for a direct/indirect object and is used when there's no preposition.
Ellos practican mucho para mejorar su habilidad
Mis amigos van al museo a ver las pinturas
muchas personas irán a la plaza a divertirse
mis primos fueron al cine
