100 PIONTS ANSWER PLEZ IT IS NOW DUE!!!!!!
15. A triangle pattern is shown below.


Figure Perimeter

1 triangle 24

2 triangles 30

3 triangles 36

Which equation relates the number of triangles in the figure (n) to the perimeter of the figure (P)?


(1 point)

P = 6n + 18

P = 9n + 6

P = 6n + 9

P = 9n + 12