Final answer:
The Spanish equivalent of 'seven thirty' is 'siete y media'.
Step-by-step explanation:
The Spanish equivalent of the phrase 'seven thirty' is siete y media. In Spanish, the word 'y' is used to mean 'and'. So when telling the time, you would say 'hour + y + minutes'.
For example, if it was 7:15, you would say 'siete y quince' in Spanish.
Therefore, the correct answer to the question 'La escuela comienza todas las mañanas a las [seven thirty]' is siete y media.
Learn more about Spanish