Answer:
882
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 = 18 and d = 30 - 18 = 12, thus
[tex]a_{73}[/tex] = 18 + (72 × 12) = 18 + 864 = 882
