You're answer would be 3843000 because the number in the hundredths place is 5 so you would round up your answer
The inequality can be:

Now you divide both sides by 150 to get the #of boxes.

Lastly, x is 20. So the maximum amount of boxes that the freight elevator can hold is 20
The volume of a sphere is 
So, if the small sphere has radius
and the largest sphere has radius
, their volumes are

So, their ratio is

The equation would be
8 = 6x + 2
the “number” is unknown, so it’s x.
6 times the number would be 6x.
The sum of 6x and 2 means adding together 6x and 2, so 6x + 2
And it’s supposed to equal 8