Solution; N:2, H:4, O:3
Step by step solution:
There are 2 n’s
The 4 after the h means that there’s 4 h
And the 3 after the o means that there’s 3 o
A. Density increases
The density of planet earth is the lowest at the surface and increases the further you move to the middle.
the answer is D.
In only polling people in Arizona, you aren't taking a representative sample of the total population. You want to represent all *U.S.* adults.
What if people from Arizona spend proportionally more (or less) than the rest of the nation?
Answer:

square both sides:

solve the roots:

take a cube root on both sides:
![\sqrt[3]{ {x}^{3} } = \sqrt[3]{216}](https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B%20%7Bx%7D%5E%7B3%7D%20%7D%20%20%3D%20%20%5Csqrt%5B3%5D%7B216%7D%20)
solve the cube root:
