Answer:
30 yrs 
Step-by-step explanation:
SI = PRT/100
T = I × 100/PR
 = 9000×100/1500×20
 = 900000/30000
 = 30 yrs 
 
        
             
        
        
        
Answer:
The answer is C. 50%
Step-by-step explanation:
I'm doing the same thing and it's right. Trust me:)
 
        
             
        
        
        
Answer:
63,000 milligrams
Step-by-step explanation:
there are 1,000 milligrams in one gram. So, 63 x 1,000 = 63,000
 
        
             
        
        
        
We have a parabola.
As it is concave down, we have one maximum and no minimum.
We can identify the maximum at point (-2, 4).
Answer: (-2,4)