0
Anonymous
-1064
Elroy Murazik ∙
It is 9 times when it is subtracted from 42 and until reached 0
7N - 4N = 24
1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071.
21
7 hours subtracted by 30 minutes = -23