Well, I'm pretty sure tat you use a ruler to measure the distance of the whole of the bar for sample 2. THen you measure the distance of the mudstone.
DIVIDE: DISTANCE OF MUDSTONE/DISTANCE OF WHOLE BAR OF SAMPLE
Express this fraction as a percentage (use calculator if you want) and here you go. There's your answer.
AS FOR SECTION 2, I will give you the answers (what I think they are) for Q's 51-60:
51. 38 Degrees CELSIUS
52. Helium
53. Indicators
54. Fallopian Tube (I Think, excuse me if I'm wrong - I'm pretty crap at Biology)
55. Chromosomes
56. 3 complete wavelengths
57. ------- (CAN'T ANSWER - Stimulus Material is blocked due to COPYRIGHT)
58. Pollution
59. Ammeter
60. Nucleus
SORRY FOR NOT BEING ABLE TO GIVE MORE ANSWERS - that's all I have time for. Good Luck for your School Certificate.