Find the first four terms of the arithmetic sequence whose first term is 2 and whose common difference is - 7. What is the first term? a1Find the first four terms of the arithmetic sequence. a1 = - 9, d= -6 What is the first term? 21For the arithmetic sequence, find a, and a when a, = 3 and d = - 3. a20O Find a , and a for the arithmetic sequence. a14 = 18, a16 = 26 a17 =In an arithmetic sequence ay, - 16 and a35 - 24. Determine ay . (Type an integer or a simplified fraction.)