Question

3
6
18
-
9
8
21
8
a
-18
-4
1
154
у
-18
2/3
3/2
-21
2
X
6
-
P
17
62
(-3/5
22
-2/3
r
1
1
1
65
S
12
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Answer 1

Answer:

I can't understand the question