19
383830 + 30 = 608 + 8 = 1660 + 16 = 76
Half of 64/38 = 16/19.
It is 38/2.
Half of 76 is 38
0.5*38 = 19
19
Oh, dude, half of 38 is like 19. I mean, it's not rocket science, right? Just take 38, cut it in half, and you get 19. Easy peasy lemon squeezy.
It is 39.5km
38 and a half, I believe.
If the circumference is 38, the diameter is 38/pi. Since the radius is half of the diameter, the radius is 19/pi.
38 weeks is approximately 8.8 months.
Acvtually it's quite easy to work out. 19 is half of 38, so what is half of 60?