If it was in 10 years it would either be 2.6
        
             
        
        
        
Given that the triangles are similar. 
When triangles are similar, all three pairs of corresponding sides are in the same ratio.
Similarly in the given triangles, the ratio of the corresponding sides are equal.


Cross multiplying, we get



Dividing both sides of the equation by -4.
So, we get
x = 7.
 
        
                    
             
        
        
        
Answer:
the graph has a minimum 
Step-by-step explanation:
the minimum is -9
 
        
                    
             
        
        
        
If you are making 4 billion a second do 4,000,000,000 x 60 = 240,000,000,000
Then times that by 10 which equals. 2,400,000,000,000
Is the answer for the second one
6,000,000,000 x 60 x 60 x 2 = 1,296,000,000,000,000
        
             
        
        
        
For direct variation y varies directly with x, then we use equation y = kx
Where k is the constant of proportionality 
Given: Y equals 2 when X equals 3
We plug in 3 for x  and 2 for y and solve for k
y = kx
2 = k(3)
Divide both sides by 3

Now we plug in 2/3 for k  

Given x=-0.5  and find out y

y=-0.33
the value of y is -0.33 when x=-0.5