Question 159126
 an arithmetic sequence has t(8)=1056and t(13)=116. What is t(5)
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(116-1056)/(13-8) = -188
t(8) 1056
t(9) 868
t(10) 680
t(11) 492
t(12) 304
t(13) 116
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Working back:
t(5) 1620
t(6) 1432
t(7) 1244
t(8) 1056
t(9) 868
t(10) 680
t(11) 492
t(12) 304
t(13) 116

t(5) = 1620