Answer:
4 years
Step-by-step explanation:
Look for the year where the green bar is higher than the red bar.
 
        
                    
             
        
        
        
2x + 4y - 2x - 3y = 22 - 50
y = -28
substitute into the 1st equation to find x
        
             
        
        
        
Answer:

Step-by-step explanation:
There are two variables, q and r in the expression given. To make r the independent variable, it simply means, make q the subject of the formula, so that variable q would be dependent on variable r. As r changes, q changes also.
Thus,

Open the parenthesis

Add 10 to both sides 



 
        
             
        
        
        
Answer:
Yes
Step-by-step explanation:
Is (5,0) , (4,2), (3,4), (2,6), (1,8) a linear function?
Yes, it is a linear function.
 
        
             
        
        
        
Answer:
Find five rational numbers between 2/3 and 4/5 - 
61/90 62/90 63/90 64/90 65/90 66/90 67/90
choose any five :)