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Find the N Th Partial Sum of the Arithmetic Sequence $a _ { 1 } = 0.8 , a _ { 5 } = 2.8 , \ldots , n = 13$

Question 88

Multiple Choice

Find the n th partial sum of the arithmetic sequence. $a _ { 1 } = 0.8 , a _ { 5 } = 2.8 , \ldots , n = 13$

A) 52.65
B) 92.30
C) 105.30
D) 46.15
E) 49.40

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