Answer:
I'm assuming you have to do the same thing for all three models given
1st model
Fraction: 
Decimal: 0.16
Percent: 16%
2nd model
Fraction: 
Decimal: 0.666
Percent: 66.666%
3rd model
Fraction: 
Decimal: 0.40
Percent: 40%
Cross sections perpendicular to the base and through the vertex will be triangles. Below, you can see a plane cutting through the pyramid, part of the pyramid removed, and the cross section. You could also take a slice parallel to the base. Cross sections parallel to the base will be hexagons.
California, Hawaii, Oregon, Washington and Alaska all border the mountain region and are located in the Pacific.
The answer is D. Gravity.
Gravity attracts objects to the surface of the Earth. Take a falling brick, for example, the brick has more mass, therefore, there is more attraction between the brick and Gravity. The brick is a solid object and is heavier as well.
Hope this helps! :)