It’s incorrect because the verb should be in the to form, not the he she form. I hope this helps!
Answer:
Van a escuchar música
Explanation:
Los sábados, Mariana y Carlo van a escuchar música con sus amigos
Answer:
son
Explanation:
this spanish text means: You and Bernardo gymnasts. Are in Spanish is son.
Your whole sentence should say "Usted y Bernardo son gimnastas."