Respuesta :

Answer:

270 ?..................

Answer:

30 months

Step-by-step explanation:

200+55m=50+60m

60m-60m = 0

55m-60m = -5m

200-5m=50

200-200=0

50-200= -150

-150/-5 = -5m

-5m/5 = 0

-150/-5 = 30