Question 1 (1 point) Fill in the missing numbers.
8
a
Ob
top = 1, bottom = 17
top = 17 bottom = 72
top = 17 bottom = 1
top = 72 bottom = 17
C С
d
Question 2 (1 point)
Evaluate the expression
-1-21
-2
b
2
O
С
1
d
-1

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