(2,4), (4,8), (3,6), (5,10) because they’re all ratios of 1:2
        
             
        
        
        
Answer:
x = 38
y = 25
Step-by-step explanation:
To find x, you do 
(2x + 5) = (3x - 33)
Subtract 2x from both sides to isolate x on one side, you get:
5 = (x - 33)
Add 33 to both sides to separate the normal number from the x, you get: 
38 = x
From there, you plug x into one of the equations
2(38) + 5 
The answer's 81, meaning that angle is 81 degrees. Using supplementary angles, you can find that angle ACD = 99, which you can use to find angle BCE. You'll get this equation: 
(4y - 1) = 99
Add one to both sides to get rid of it, you get: 
4y = 100
Divide by four, to get the y all alone:
y = 25
I hope this helped!
 
        
                    
             
        
        
        
Sum of 5 times z and 4 divided by two is 7.
 
 
        
        
        
Answer: D
Step by Step: Even though the y value repeats, to be considered not a function is when the X value repeats
        
             
        
        
        
4
Step-by-step explanation:
8/5(put 8 as numerator becuz we need to find all x from 5/8) x 2 1/2=4