Answer:
-$2.32
Step-by-step explanation:
Give that 
The selling price per ticket is $9
And the number of tickets sold is 500
So, 
There is one grand prize, three $300 second prize, and eleven $40 third prizes
We need to find out the expected value of the profit

= 4 + 1.8 + 0.88
= 6.68
Now the expected profit is 
= $6.68 - $9
= -$2.32
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
(6 * 4 ) * 2 = 48
( 4 * 12 ) * 2 = 96
( 6 * 12 ) * 2 = 144
48 + 96 + 144  = 288
 
        
             
        
        
        
Width: x
Length: 2x
Perimeter=2x+2x+x+x=6x
32 cm more than width means x+32
6x=x+32
5x=32
x=6.4
Dimension is 6.4×12.8 (width×length)
        
             
        
        
        
Answer:
x > -7 is true because there are more tennis balls than -7  
Step-by-step explanation: