Answer:
7.5 pounds per square-inch
At sea level, one square-inch of any surface has about 15 pounds of air sitting on top of it. At 18,000 feet, that same square inch has only 7.5 pounds per square-inch (psi) exerted on it.
The Earth's core is the part of Earth in the middle of our planet. It has a solid inner coreand a liquid outer core.
I think it’s A but, don’t come at me if I’m wrong. Btw I read over it multiple times so this isn’t a random guess. Good luck tell me if you got it right
Answer:
89.0493
Explanation:
Add the numbers(line up the decimals)
4.337 + 84.7123
Than you should get
89.0493
