Probably you are supposed to compute

Factorize the numerator and denominator, then simplify:
Answer:
A. (3,3)
Step-by-step explanation:
So we see our equation, clear:
y=8^x
Let's just plug in values of x from 1-4.
y= 8^1=8; So, it would be (1,8).
y= 8^2=64; So, it would be (2, 64).
y = 8^3= 512; So, it would be (3,512).
y= 8^4 = 4096; So, it would be (4, 4096).
Answer:
There are two types of crust, continental and oceanic, which differ in their composition and thickness.
Step-by-step explanation:
I don't know too much about plate tectonics but if Im wrong you can report this and get your points back.