Nothing
Explanation:
Mass of the sample = 500g
Decay rate per anum = 11%
Unknown: 
Mass of sample remaining after 10yrs = ? 
Solution: 
   This is a simple percentages problem; 
The radioactive sample loses  x 500g of sample per year;
 x 500g of sample per year; 
   this is a loss of 55g per year; 
In 10years time, the sample would have lost 10 x 55g = 550g of element.
Since our sample is not up to 550g, then no amount of sample will remain after 10yrs. 
learn more: 
Radioactive decay brainly.com/question/10094982
#learnwithBrainly
 
        
             
        
        
        
Answer:
1) types of music - independent 
performance in doing homework - dependent
person - control
2) period of time - control
number of flowers - dependent 
types of rose bushes - independent 
Explanation:
 
        
             
        
        
        
10000000 km per second which is really fast lol
        
             
        
        
        
Transcription is the process<span> by which </span>DNA<span> is </span>copied<span> (transcribed) to mRNA, which carries the information needed for protein synthesis. Transcription takes place in two broad steps. First, pre-messenger </span>RNA<span> is </span>formed<span>, with the involvement of </span>RNA<span>polymerase enzymes.</span>
        
                    
             
        
        
        
Land ownership is the answer for Apex