Answer:
1 hotdog is $3.5.
1 drink is $2.
Step-by-step explanation:
18.50= 3x+4y(times 5)
25.50=5x+4y(times -3)
92.5=15x+20x
-76.5=-15x+-12y
 16=-8y
2=y
18.50=3x+4(2)
10.50=3x+8
10.50=3x
3.5=x
            
 
        
             
        
        
        
Answer:
In the picture. 
Step-by-step explanation:
Note : From 1 to 12 it's the same idea but without variables (very easy) so , just do the same idea.
I solved the problems contained variables 
I hope that it's a clear explanation. 
 
        
             
        
        
        
Answer:
Just a little puppy 
hope this helped
Step-by-step explanation:
 
        
             
        
        
        
Answer:
The kinetic energy of an object is given by: Kinetic energy = 1/2 * mass * velocity If the kinetic energy of the pendulum at the top of its swing is 0, then this tells us that the velocity of the pendulum at that point is 0
 
        
                    
             
        
        
        
Answer: x=7
12x-4=0.5(22x+6)
12x-4=11x+3
-11x -11x
x=7
Explanation: use the tangent-chord angle theorem.