Answer:
218 students purchased tickets at the dance.
Step-by-step explanation:
Let, 
x be the number of presale tickets 
y be the number of tickets sold at the dance 
According to given statement;
x+y=334      Eqn 1 
18x+24y=7320    Eqn 2
Multiplying Eqn 1 by 18 
18(x+y=334)
18x+18y=6012      Eqn 3 
Subtracting Eqn 3 from Eqn 2 
(18x+24y)-(18x+18y)=7320-6012
18x+24y-18x-18y=1308
6y=1308

Therefore,
218 students purchased tickets at the dance.
 
        
             
        
        
        
Answer:
The answer would actually be B.) S
As you can see, where the S is, it is in the same position as the A on the other triangle.
 
        
             
        
        
        
Answer: The answer is D
Step-by-step explanation: Hope this helps
 
        
                    
             
        
        
        
#3 is not a function because there are two answers for one out put
#4 is a function because it is a straight line