Liborangelineviz Liborangelineviz Math Answered a. 136.14C. 1513. What is the 12th term of the arithmetic sequence 3, 10, 17, 24,...?d. 16a. 73b) 80C. 87d. 9414 What is the sum of the first 12 terms of the arithmetic sequence 4, 9, 14, 19,...?.