Answer:
Amber is fossilized tree resin that has been appreciated for its color and natural beauty since Neolithic times. ... There are five classes of amber, defined on the basis of their chemical constituents. Because it originates as a soft, sticky tree resin, amber sometimes contains animal and plant material as inclusions.
 
        
             
        
        
        
1, 3, 9, 27, 81, 243, 729, 2187, 6561, 19683, 59049, 177147, 531441, 1594323.
If this is the proper sequence pattern, we add up all the numbers to get a sum.
The total sum is 2391457.
        
             
        
        
        
i 18
---- = ----
100 25 
25i 1800
----- = -------
25 25
 i = 72 
72%
        
             
        
        
        
The slope is 7
slope equation: y=mx+b
m=slope
        
             
        
        
        
Yes you can assume they are similar because the sides that correspond with one another are half of the big triangles measurements. 16/2=8 12/2=6 etc.