The answer is D because the answers are put into vertex form and all you have to do is look at your (h,k) values
Answer:
The answer is D

That's the only equation will get us one point
Answer:
6
Step-by-step explanation: if im wrong then sorry i couldnt really see
Assume the number 100. 100*1.09=109. You then do 109*0.86=93.74.
So the overall decrease is 6.26%.