Given the explicit formula, find the 7th term. an = 2.5 + (n − 1)4

Answer 1

To find the 7th term, we substitute n = 7 into the formula.

a7 = 2.5 + (7 - 1) * 4

a7 = 2.5 + 6 * 4

a7 = 2.5 + 24

a7 = 26.5

Therefore, the 7th term is 26.5.