30. It is the 3rd option from the top.
31. The answer is the first option, 10/7.
32. The answer is the second option, xy/2
33. This is the fourth option, 2w+10
34.This is the third option, 5 hours.
35. This is the fourth option, 6h=18
36.This is the first option.
37. This is the first option from the top.
38. This is the second option, y= x-5
39. This is the third option from the top.
Hope I was of some help!
Good Luck!
