The first five terms in a pattern are shown below.-0.5, -0.25, 0, 0.25, 0.5, . . .If the pattern continues, which expression can be used to find the nth term? A   0.75n - 1.25   C   0.25n - 0.75    B  -0.25n - 0.25       D  -0.5n + 0.25

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A:

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.