Answer: True
Step-by-step explanation:
The probability of an event occurring lies between zero and one. A probability of 0 means that the event has no chance of happening for example, rolling a die once and getting a number greater than 6 while a probability of 1 means the event will definitely happen for example, getting a number less than 7 when you roll a die once. 
Every other probability falls in-between this range so probability can never be 154. 
 
        
             
        
        
        
Answer: 280
<u>Step-by-step explanation:</u>
                   Quantity   X    Cost    =  Money Received
Adult:               x                   3                   3x          
Children:       500-x              2            2(500 - x) = 1000 - 2x
Adult = Children + 400
   3x   =  1000 - 2x + 400
   3x   =   1400 - 2x
   5x   =   1400
     x    =    280
 
        
             
        
        
        
Yes it’s 15, Thats cool man
        
             
        
        
        
The differences between he numbers are 19, so the answer is 58 + 19 = 71