15 because 6*3/2 is 9 9+6=15
        
             
        
        
        
445 .                       Answer:
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
There needs to be 174 Students in the 8th grade class.
Step-by-step explanation:
173(1/3) is 58 
58+17=75
 
        
             
        
        
        
There something you ain’t giving us in this equation
        
             
        
        
        
The illustration of the given mathematical elements is as in the attached images.
<h3>Illustration of mathematical elements</h3>
For line segments; 
- The beginning and end of the line are specified by the assigned alphabets.
However, for rays;
- The ray is illustrated to originate from a point and span on from there till infinity.
For angles;
- The alphabet in the middle of the set of 3 alphabets used to identify the angle represents the center point of where the angle is located.
Read more on illustration of mathematical elements;
brainly.com/question/18430725