(x^2) - 16 / x+4 = (x-4)(x+4) / (x+4) = x-4, x not equal to -4
D is the answer.
We are given this

write it as the difference of cubes

use the formula for the difference of cubes

Now use the formula for the difference of squares as 

The answer is 4700 megabytes.
1 giga = 1000 mega
1 gigabyte = 1000 megabyte
4.7 gigabyte = x megabyte
1 gb : 1000 mb = 4.7 gb : x
x = 1000 mb * 4.7 gb : 1 gb
x = 4700 mb
Answer:
(7,3)
Step-by-step explanation:
difference is 4.5x and -.5y
so apply to (2.5,3.5) and you get (7,3)