At least 5. because 47x4=188 which isn’t enough money, and 47x5=235, which goes over but you have to have more money than less money
        
             
        
        
        
Out of the three options the first one is the right answer with the given numbers <span />
        
             
        
        
        
Here, it is solved.
you only have to know: 
The sum of the sides of a quadrilateral is equal to 360º.
 
        
             
        
        
        
There is no photo to go off but since the shapes are rectangles you would need to find all the sides and then add them up. Hope this helps!
        
             
        
        
        
Let the length be x so 4x+7x=10x=42 as it is the perimeter.
so 21x =42 x=2
lengths are 8 cms , 14 cms and 20 cms