Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence.20, 14 , 8, 2, . . .
A. an = -6n + 20; a20 = -100
B. an = -6n + 26; a20 = -94
C. an = 6n - 20; a20 = 100
D. an = 6n - 26; a20 = 94
Answer: B
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