Question: Given are the first three terms of a sequence that is arithmetic. Find a, and d. 7, 10, 13 O A. a1 =7; d=2.25 OB.

Given are the first three terms of a sequence that is arithmetic. Find a, and d. 7, 10, 13 O A. a1 =7; d=2.25 OB. a1 = 7; d=9 O C. a1 = 7; d= 3 O D. a1 =7; d=7

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