Find the nth term and the indicated term of the arithmetic sequence whose initial term, a, and common difference, d, are given.a = -4; d = 5an = ?; a8 = ?
A. an = -9 - 5n; a8 = 31
B. an = -9 + 5n; a8 = 56
C. an = -4 + 5n; a8 = 31
D. an = -9 + 5n; a8 = 31
Answer: D
Mathematics
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