Answer: 19 years
Step-by-step explanation:
Given
Amount invested 
Rate of interest 
after 1-year amount becomes

After n years it is

Sum accumulated is 

Again, guess and test should work perfectly fine. Since 2(x+y)=32, x+y = 16. Because y-2 =x, y could be = 9 and x = 7. Hope that help!
Answer:
The answer is 8x.
Step-by-step explanation:
It is 8x.
EXCEPT,
Is it
or 
If it is
then the answer is 
PLEASE MARK BRAINLIEST
Answer:
A
Step-by-step explanation:
The Moon actually takes 27.3 days to complete one orbit around Earth
Answer:
A'
Step-by-step explanation:
i think it is, sorry if im wrong