Given: 
The train has 6 passenger cars
Each car has 4 columns
And 1 column hold 50 passengers
So, total of seats will be = 6 * 4 * 50 = 1200
Now, there are 25 empty seats, 
therefore the correct equation will be : 
Number of seats per car: 4 × 50 = 200
Total number of seats: 200 × 6 = 1,200
Number of passengers: 1,200 − 25 = p
        
             
        
        
        
Answer:
See Explanation
Step-by-step explanation:

 
        
             
        
        
        
        
Answer:

Step-by-step explanation:
To find square root, you have to find out what number times itself will create the square root value:
 means that there has to be a number that times itself to get 4.
 means that there has to be a number that times itself to get 4.
2*2=4
Meaning that 2 is the perfect choice for this question.
 = 2
 = 2