Answers: x = 4 and y = 3
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Explanation: 
Triangle UBD is congruent to triangle RAN
Note the order of the lettering as it's important. 
BD and AN are the last two letters of UBD and RAN in that order. Therefore, these sides correspond and BD = AN. From that, we know,
BD = AN
2y+5 = 3y+2
5-2 = 3y-2y
3 = 1y
y = 3
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Using similar logic, UD and RN are the first and last letters of UBD and RAN respectively. So,
UD = RN
15 = 2x+7
2x+7 = 15
2x = 15-7
2x = 8
x = 8/2
x = 4
 
        
             
        
        
        
The least common multiple of  2  and  4  is  4 .
Here's a useful hint to keep in mind:
If the smaller number is a factor of the larger number, 
then the larger number is the LCM of both of them.
        
                    
             
        
        
        
Answer:
A function is a function that passes the vertical line test
Step-by-step explanation:
the vertical line test direction: 
draw a line straight down you graph if it hits the x axis two time it not a function 
 
        
             
        
        
        
I am hoping that the a in c = ad is supposed to be x.
The formula for circumference is c = pi * diameter with 3.14 substituting for pi.
Let’s plug in some values
172.7 = 3.14d
Divide
55 = d
The diameter should be 55 cm.