54.00 has 4 significant figures.
5400
The average temperature is 5400 ºF (3000ºC),
5400
5400
60 goes into 5400 exactly 90 times. This can be calculated by dividing 5400 by 60.
5400
5400 = 5,400
5400
It is: 60*5400 = 324,000
5400 minutes is equal to 5400 x 60 = 324,000 seconds, or 5400 / 24 = 225 hours, or 9 days 9 hours.
40 percent of 5400 is 2160.