Ella hace mucho ejercicio para a. entrenarse b. se entrena c. se entrenan

En un triangulo rectangulo, el cateto largo mide 7 unidades mas que el corto a su vez la hipotwnusa mide 1 unidad mas que el cateto que area tiene dicho trangulo

Am i correct on #2 spanish question above?

How do you say the following in spanish? 1. what are you going to do in school? 2. what will you do next year? 3. how hot is it going to get in town next month? 4. what college are you going to? 5. when will it get colder? 6. do you plan on getting married?