Question

Which expression defines the arithmetic series 2.3 + 2.6 + 2.9 + . . . for five terms?

Answer 1

so a sub n=2.3+(n-1)0.3
That's in an arithmetic sequence
heres a pic to help

Answer 2

2.3 plus 2.6 plus 2.9 plus 3.2 plus 3.5