Respuesta :
Answer: 90
Step-by-step explanation:
multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90
multiples of 10 :10, 20, 30, 40, 50, 60, 70, 80, 90, 100
multiples of 18: 18, 36, 54, 72, 90, 108, 126
lowest common one is 90