Answer:
12, 21, 30, 39, 48, 57, 66, 75, 84.
Ninth term is 84.
Step-by-step explanation:
The rule for this sequence is "add 9".
So, using this rule, we can do......
12, 21, 30, 39, 48, 57, 66, 75, 84.
<em>Remember to add 9 each time!</em>
Best of luck :3
