A square mile = 27,878,400 square feet

A square mile also = 640 acres.

31,580/.75 = 43,440 persons per square mile

That is 27,878,400/43,440 = ~642 square feet per person so each person has a square approximately 25 feet on each side.

43440/640 = ~ 68 people per acre

This is a fairly dense population density by US standards. Of course if housing were constructed in high rise structures located on a couple of acres, there would be a comfortable area of open space.

Alright, lets get started.

3 feet = 1 yard

If we cube both sides of the equation, we will get the conversion into cubic yards

So,

27 cubic feet = 1 cubic yards

So, 1 cubic feet = cubic yards

So, 360 cubic feet = cubic yards

So, 360 cubic feet = 13.33 cubic yards

**13.33 cubic yards of air can it circulate per minute. : Answer**

Hope it will help :)

**Answer:**

Root

**Step-by-step explanation:**

Not too sure about this one, but I believe it is

A **root** is a number that makes an equation true.

**Answer:**

The answer is B im pretty sure

**Step-by-step explanation:**

Also this isn't math