ANSWER:

an = a1 + (n - 1) d

an = 7 + (18 - 1) 6

an = 7 + 17 (6)

an = 109

CHECK:

7, 13, 19, 25, 31, 37, 43, 49, 55, 61, 67, 73, 79, 85, 91, 97, 103, 109

• Thus, the 18th term of the arithmetic sequence is 109.

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Answer:

7,13,19,25,31,37,43,49,55,61,67,73,79,85,91,97,103,109,