Find the common difference d and the nth term an of the arithmetic sequence with the specified terms. 3rd term is 19; 8th term is 54
A. d = 5; an = 5n + 7
B. d = 7; an = 7n - 2
C. d = 14; an = 14n + 12
D. d = 7; an = 7n + 5
Answer: B
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A. - 
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D. 
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