Respuesta :

Answer:

C (900)

Step-by-step explanation:

50 for each orchestra

40 for each balcony

600 x 50 = 30000

39000/40 = 975

600+975=1575 not correct

750 x 50=37500

750 x 40 = 30000

not correct

900x50=45000

600x40=24000

correct

your answer will be C