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B. Find the indicated term for the sequence. 3n +7 20. a = 2n-5; a. 19 a = -9n + 2 a 5 21. a = (n + 1)(2n + 3); a,​

B Find The Indicated Term For The Sequence 3n 7 20 A 2n5 A 19 A 9n 2 A 5 21 A N 12n 3 A class=