756
42
36
1512
24 times 63
24 x 7 = 168 x 9 = 1512 24 hours multiplied by 7 days in a week, then that answer multiplied by 9 for nine weeks giving you the answer of 1512 hours. There are 1512 or 1,512 hours in 9 weeks.
84
504, 1008, 1512 and 2016
There are 24 hours in a day.63 x 24 hours = 1512 hours
0.0079
1512
1512 to 1 significant figure is 2000