tolong dijawab pake cara no. 23 24 , 30

24. 320 F =.... R
      4/9 x (320 - 32 ) = 4/9 x 288 = 128
30. 3/7 x 140 = 6 jam = 6 x 60 = 360 menit

23.5016/1000=627/125= 5 2/125
30. 3/7x14 jam = 6 jam x 60 menit =360 menit