problems 29,31,33 show all work. thank u

Find the speed in rpm of gear D in each gear train. 29. A = 60 teeth at 1680 rpm B = 30 teeth D = 48 teeth 30. /D = 48 teeth C = 15 teeth C = 20 teeth A = 30 teeth B = 45 teeth at 738 rpm 31. B = 30 teeth 32. A = 20 teeth D = 12 teeth C = 48 teeth at 240 rpm C= 10 teeth w belo r.e A = 45 teeth D = 20 teeth B = 30 teeth at 160 rpm E = 45 teeth Hellome and The 33. C = 45 teeth D = 15 teeth A = 60 teeth B= 48 teeth at 370 rpm