Answer:
- 413
Step-by-step explanation:
The n th term of an arithmetic sequence is
[tex]a_{n}[/tex] = a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Here a₁ = - 17 and d = - 23 - (- 17) = - 23 + 17 = - 6
[tex]a_{67}[/tex] = - 17 + (66 × - 6)
= - 17 - 396
= - 413
