An arithmetic sequence is given. Find the common difference and write out the first four terms.
A. d = 
; 
, 
, 
, 
B. d = 
; 
, 
, 
, 
C. d = 
; 
, 
, 
, 
D. d = 
; 
, 
, 
, 
Answer: A
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Give an appropriate answer.Let
f(x) = 3 and
g(x) = 9. Find
.
A. 
B. 3
C. -6
D. 10
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A. -1 < x < 1 B. -3 < x < 2 C. -2 < x < 2 D. -1 < x < 2
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