Explanation:
s(n) = 2n - 5
What is the sum 1st and 6th terms of the sequence? 12
s(1) = 2(1) - 5 = -3
s(2) = 2(2) - 5 = -1
s(3) = 2(3) - 5 = 1
s(4) = 2(4) - 5 = 3
s(5) = 2(5) - 5 = 5
s(6) = 2(6) - 5 = 7 add these numbers
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