Answer:
I am pretty sure it would be A
 
        
             
        
        
        
The correct answer is:  a tourniquet.
The tourniquets are tight straps around an arm or leg and tightened to stop bleeding, used to control arterial and venous blood flow. In the past, tourniquet are used to control bleeding during amputations. Now,  a tourniquet is used in surgeries to block arterial blood flow following and to minimize blood loss.
 
        
             
        
        
        
It will be more similar to her biological parents test scores
        
                    
             
        
        
        
Answer:
rise over run
Explanation:
rise refers to the number of units going u or down a graph
run refers to the number of units going left or right
it is seen as so;  ,
 ,  , or
 , or   
Don't panic when I included "delta". Delta, it refers/means the small mathematical triangle found beside the rise and run symbols of y and x
 
        
             
        
        
        
Answer:
C. 579g
Explanation:
Use the formula Density= mass/ volume, make mass the subject of the formula and substitute the given values.
19.3g/cm3 is the density of gold
30cm3 is the volume for the piece of gold