Answer:
Step-by-step explanation:

Hint: 1 - Cos² A = Sin² A
1532 ÷ 36 = 42 and remain 20.
So there were 20 CDS in the remains box
In order to find the answer you will have too divide 58 by 18 and then divide what you get from that by 100 to get your answer.
100%/x%=58/18
(100/x)*x=(58/18)*x
100=3.22222222222*x
(3.22222222222) to get x
100/3.22222222222=x
x=31.0344827586
Therefore your answer is "31%."
Hope this helps.