Respuesta :

SlowZasob
We know that 5 days and 12 hours is as much as 5.5 days, so all we need to do is to multiply 1800 watt-hours by 5.5 days:

1800 * 5.5 = 9900

Answer: A light bulb consumes 9900 watt-hours each 5 days and 12 hours.