Answer:
common difference
d = -2 - (-5)
d = -2 + 5
d = -3
nth term
[tex]n \: = \frac{an - a1}{d} + 1 \\ = \frac{40 - ( - 5)}{ - 3} + 1 \\ = \frac{40 + 5}{ - 3} + 1 \ \\ = \ \frac{45}{ - 3} + 1 \\ = - 15 + 1 \\ = - 14[/tex]
