Answer:
53,760,970 households/year
Step-by-step explanation:
First step is to do 65,929,420 - 12,168,450 = 53,760,970
Now divide 53,760,970 by 20 since the difference in 1997 and 1977 is 20
53,760,970/20 = 2,688,048.5
So each year 2,688,048.5 people got cable.
But it would be 53,760,970/year because then you could divide it by how ever many years to see how many people got cable.
Hope this helps!!
The answer is the option D.
You have to use implicit derivative
1) dy / dx = y'
2)
We know that the root of 64 is 8 and the root of 16 is 4.
=

The simplified form of

is

.
You can estimate that 5x4257 is 20,000
to check 5x4257=21,375 which is close to 20,000