One is a higher level the other is being payeda different amount
Assuming that the 1.5 is in miles you must add 1.5 to 5.25 because you are looking for the previous elevation of the plane before it descended giving you an answer of 6.75 miles.
8 and 57/100 I don't think that you can simplify that much more than it is
"I am a figure with six layers .each of my layers is the same."---> using this sentences, you can conclude that the shape is cube because cube made of 6 similar square.
<span>my bottom layer has a perimeter of 28 units ---> Using this sentences, you can know the square perimeter is 28. Then the square side would be:
square perimeter= 4* side
28= 4* sides
side= 7
Then, the volume of the cube would be:
cube volume= side^3
cube volume= 7^3= 343 cubic units
I think there is a typo somewhere in this question. The calculation should be true, but it is not in 200-300 range. The volume that in 200-300 would be when the side is 6 unit(volume=216), but the perimeter should be 24 not 28.
If the perimeter 28, volume= </span>343 <span>
If the perimeter 24, volume= 216</span>
Since all sides are equal, all angles equal 60 degrees
3y= 60
y=20
2x=60
x=30
