All the multiples of 18 and 30
18: 1,2,3,6,9,18
30: 1,2,3,5,6,10,30
The first three common ones are: 1,2 and, 3
        
             
        
        
        
Okay, so first things first:
i = 

That said, no answer that has -245 is correct.
Now we just need to solve 

245/5=5*49

So, that's your answer, option D.
 
        
        
        
Adult ticket=£17 and child ticket=£9 hope this helps 
        
             
        
        
        
Answer:
In geometry, the circumference is the perimeter of a circle or ellipse. That is, the circumference would be the arc length of the circle, as if it were opened up and straightened out to a line segment. More generally, the perimeter is the curve length around any closed figure.
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: If four numbers are proportional, a : b = c : d, then the product of the extremes is equal to the product of the means. ad = bc