<span>The inner core is made of solid iron, and it is surrounded by the liquid iron of the outer core. It is solid because the extreme pressure at the center of the earth prevents it from melting, despite the unimaginable temperatures.</span>
Answer:
d - 7
Step-by-step explanation:
The word "difference" tells us that we will be using subtraction. Also, subtraction is not the same if you reverse the terms like, x - 2 and 2 - x are not the same. In your question it say "d and 7" so that's the order we use in the algebraic expression.
Answer:
699999993632^xa
Step-by-step explanation:
Just use M a t h w a y A l g e r b a
It may be wrong Sorry if it is
Answer:

Step-by-step explanation:
=
We need a common denominator before we can add.
+
means the same thing as
-
= 
Answer:
never heard about it
Step-by-step explanation: