Find the first term and the common difference for the arithmetic sequence. Round approximations to the nearest hundredth.S5 = - 15, a5 = -7
A. a1 = 29, d = -2.8
B. a1 = 1, d = -2
C. a1 = 1, d = -2.8
D. a1 = 29, d = -2
Answer: B
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