HELP ME I VERY STRESSED(⓿_⓿)
This pattern follows the rule add 9. What are the next 3 terms?
An image of a pattern. Term one has 9 triangles, term two has eighteen triangles, term three has twenty-seven triangles.
A. 36, 45, 54
B. 39, 48, 57
C. 42, 51, 60
D. 54, 63, 72