I don't know for sure, but I think the answer is 200
 
        
             
        
        
        
Any with an odd number of minus signs. 
Perhaps the 1st and 4th, if I read it right.
        
                    
             
        
        
        
Answer:
22.5
Step-by-step explanation:
If you divide y/x each ticket costs $2.5, so multiply 2.5x9 and that's your answer. :)
 
        
             
        
        
        
(-1) to the power of an even number is +1.
(-1) to the power of an odd number is -1.
Since 50 is an even number, (-1)⁵⁰ = 1.
 
        
             
        
        
        
Answer:  The value of a is -6.
Step-by-step explanation:
To do this we need to find the y-intercept first.
-2= 4(1/2) + b
-2=2+ b 
 -2  -2 
b= -4  so now the y-intercept is -4  so we will now have the equation y= 1/2x -4 
so now put -4 into the equation for x and solve for y.
y= 1/2(-4) -4 
y = -6