30 - 29 = 1 for the first one.
        
             
        
        
        
Answer:
x=9
Step-by-step explanation:
Since you don't have that much information, you have to assume line HE is congruent to line GF, so now you have an equation that looks like this:  23=x+14.  Now you subtract 14 from both sides giving you 9=x, and since you cannot simplify even further, that is your answer
 
        
             
        
        
        
Answer:
The value of y would be 45.5
Step-by-step explanation:
To solve this problem, start with the base form of direct variation. 
y = kx
Now we can use our original values to model the equation and find k. 
35 = k(2.5)
14 = k
Now we can model the equation as:
y = 14x
Now to find y, when x = 3.25, simply put 3.25 into the equation. 
y = 14(3.25)
y = 45.5
 
        
             
        
        
        
First, we can write the equation of the line using the information provided:

Now, we can create a table:
Finally, we can graph the line:
 
        
             
        
        
        
Answer:
y = 4
Step-by-step explanation:
6y + 30 = 54
subtract 30 from each side
6y = 24 
divide each side by 6
y = 4