Answer:
12
Step-by-step explanation:
vìâyậyđó v
brainly.com/question/20725310?answering=true&answeringSource=feedPublic%2FhomePage%2F1
The vertex of f ( x ) is at x = − 8/ 2 = − 4
if i'm not mistaken the answer is B
So the amount after 21 years is: $66328.68
ITs blury