Answer:
5:2
Step-by-step explanation:
 
        
                    
             
        
        
        
1/3 is the slope.
x-3y=2
-3y=-x+2
y=(1/3)x+2/3
        
             
        
        
        
Answer:
Step-by-step explanation:
You take the starting year of 1990 and subtract it from 1999 to get the year span of 9, 
You then take the amount per year the population goes up by which is 300, so 300 multiplied by 9 is 2,700 
You add 2,700 to 21,152 to get B-23,852
 
        
             
        
        
        
Answer:
first top left graph? 12×4 is 48 so that puts it about right
 
        
                    
             
        
        
        
15·0.8 + x = 30·0.9 --> x = 15
C. is the correct answer