Answer:
D
Step-by-step explanation:
a in a(1 + r)x is always the initial value, so that rules out A and B. Also, you're looking for exponential growth instead of decay, so the number inside the parentheses has to be greater than 1. So that rules out C and you're left with D.
We know,
Area of triangle = 1/2 * b * h
= 1/2 * 2x * 3x
= 1/2 * 6x
= 3x
I hope it gets easier for you :)
C
