Vertices: (12, 2) and (2, 2)
Foci: (10, 2) and (4,2)

true? is that what you're asking or do you mean something else?

your answer is the frist one

hop i

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.