It is 19.3g/cm^3. To find density, you divide mass by volume, or d=m/v
        
             
        
        
        
Answer:
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles to settle in place.
Igneous rock (derived from the Latin word ignis meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or lava.
Metamorphic rocks were once igneous or sedimentary rocks, but have been changed (metamorphosed) as a result of intense heat and/or pressure within the Earth's crust. They are crystalline and often have a “squashed” (foliated or banded) texture.
Explanation:
 
        
             
        
        
        
There are 11 organelles in total, 
vacuoles: they store water
Chloroplasts: trap energy from the sun to produce food for plant cell
Cell wall: provides support and protection to the cell membrane, 
Cell membrane: thin flexible barrier around a cell, controls what enters/ leaves the cell
Nucleus: 'The control center', carries the DNA of the cell
Ribosomes: Found in all cells, their jobs are to make protein 
Endoplasmic Reticulum: The internal delivery system of the cell
Golgi complex: Transports materials throughout the cell
Lysosomes: Break down food into particles the cell can use. another function is they destroy old or dying cells 
Mitochondria: Breaks down food to make ATP 
and last but not least cytoplasm a jelly like fluid in the cell that keeps the organelles suspended 
        
             
        
        
        
I believe the answer you are looking for is median.
example:
2     4     6     |8|     10     12     14
median: 8
three on each side of "8"
        
                    
             
        
        
        
Answer: 
Chromosomes (two sister chromatid bonded) or Chromatids (separate parts of a chromosome)